Forgotten Review: The Korean Thriller with One of the Best Plot Twists I’ve Seen
A near-perfect thriller that’s gripping, poetic, and just chaotic enough to make you ignore its messy parts
Korean Movie Name: 기억의 밤 (Night of Memory)
Where To Watch: Netflix ← *Click for direct link*
Average Rating: 8.5/10 (MyDramaList)
My Rating: 9/10
One Sentence Description: A standout thriller with an unforgettable ending, minor flaws, and a storyline that lingers long after the credits roll.
Trailer:
Disclaimer: This review is 100% my opinion — I’m not here to hate, just to share my thoughts! Also, SPOILERS AHEAD, so proceed with caution if you haven’t watched yet. Watch it, come back and let’s see if you agree. Let’s keep the discussion respectful and fun! 💕
CONTENT WARNING: I hope you’ve already seen this movie and know what the deal is. But in case you don’t, I felt like I should add in a little warning. This show has mentions of suicide and death. And since this is a review, I do also talk about this (in relation to the movie only). Please be aware of that before you continue and be mindful of it. Stay safe ❤️
Simple Description
This movie is basically a psychological slap in the face. You think you know what’s going on and then it flips the table and tells you, “Nope, that was all a lie.”
⚠️Length Note: This post includes a detailed (and long) story breakdown. Want to skip straight to the review? Jump to the Review
It starts off with Song Jin Seok, a soft-spoken, nervous 20-something who moves into a new house with his parents and older brother, Yoo Seok. From the jump, it’s clear, Jin Seok clearly struggles with anxiety or maybe something deeper , and takes medication regularly. He leans heavily on Yoo Seok, who’s warm, protective, and seems like the ideal big brother.
But then things start getting weird. Jin Seok is told not to go near a locked room in the house because it “belongs to the landlord.” Totally normal, right? Wrong. At night, there are loud thuds and dragging sounds coming from that same room. But when he brings it up, the family brushes it off like it’s nothing.
Already on edge, Jin Seok starts noticing even more suspicious behaviour. His parents whisper behind closed doors and act shady when they think he’s not paying attention. So, like any rational person in a sketchy situation, he starts tracking everything down in a notebook.
Life continues on in a fake sense of normal until one rainy night when Jin Seok and Yoo Seok are walking home from the store. Everything seems calm until a black van rolls up and kidnaps Yoo Seok right off the street. Jin Seok tries to report it to the police, but they couldn’t care less, which only makes him spiral even more.
Weeks go by with no sign of his brother until, out of nowhere, Yoo Seok comes back. But instead of a happy reunion, things are… off. Yoo Seok is bruised, disoriented, and claims he has no memory of what happened. Not only that but Yoo Seok’s behaviour is just… different. Jin Seok starts noticing the little things: his once left-handed brother starts eating with his right; a song they both loved gets no reaction; he’s drinking chamomile tea now (which he used to hate); and he’s speaking more formally, even flinching when Jin Seok touches him.
At this point, Jin Seok is convinced: not only is his family hiding something, but this man isn’t his real brother.
The suspense goes into overdrive when Jin Seok secretly follows Yoo Seok one night. He watches his “brother” meet with strange men in a dark alley, and possibly kills someone. Shook to his core, Jin Seok runs home, fully convinced that whatever is going on, it’s way bigger than he thought.
Determined to uncover the truth, he breaks into the mysterious locked room. But instead of dusty boxes and landlord junk, he finds something straight out of a nightmare: surveillance monitors, notes about him, and recordings of his daily movements — it’s a full-blown control room.
Convinced he’s being brainwashed or monitored as part of some twisted experiment, Jin Seok bolts from the house. But before he can make it far, he’s grabbed by what appears to be the police.
Jin Seok wakes up in what looks like a cross between a hospital room and an interrogation cell. Yoo Seok is there too — only now, something about him feels cold. As Jin Seok sits, confused and disoriented, disturbing footage and photos are laid out in front of him. Then a man enters and starts asking about his past. Simple questions but Jin Seok can’t answer. He realises, horrifyingly, that he doesn’t remember anything from before moving into the house.
Even his own identity starts to feel like a stranger.
Then, slowly, it all starts to unravel. In fragmented, terrifying flashbacks, Jin Seok begins to remember: breaking into a house… killing a woman in front of her child… the rest of the family walking in and being murdered too…
Piece by piece, the truth shatters through his mind. The house he “moved into”? The same one he broke into years ago. His loving family? Just hired actors. And Yoo Seok? Not his brother at all but the son of the murdered family, who survived the massacre and witnessed the whole thing. The entire movie, from start to finish, was a setup. A twisted but carefully crafted plan to make Jin Seok remember, confess, and finally face what he did.
And he does.
With his memories now painfully clear, Jin Seok confesses to everything: desperate for money, he’d gone online and ended up getting contacted by a man offering him a large sum if he killed the man’s wife.
At first, Jin Seok was hesitant. But with no way out, he showed up at the house. Just as he was about to back out and leave, the woman caught him. She begged him not to do it. He agreed, he’d go. It was over.
Except it wasn’t.
The woman’s daughter came downstairs, pieced together what was happening, and screamed. In the chaos, Jin Seok panicked. He tried to silence her and the mother intervened. She died. The daughter followed. Blood. Silence. And then Jin Seok ran. What he didn’t know was that the young son survived. And he remembered everything.
That boy, now grown, spent years meticulously planning this psychological trap. Becoming “Yoo Seok,” setting the scene, manipulating Jin Seok into reliving it all. And now that he had the confession, his revenge was complete… or so it should’ve been.
But trauma doesn’t just go away. And justice doesn’t bring peace.
In the final moments, the real Yoo Seok — shattered, broken, and hollow — walks out of the room, makes his way to the rooftop, and jumps. A tragic, poetic ending to a story where no one truly wins.
The End.
The Review
The Good
Twist After Twist After Twist
This movie knew how to play with your head in the best way. The plot twists were so well done that I was second-guessing everything right alongside Jin Seok. When the brother got kidnapped and came back acting different? I was instantly suspicious. I had my own little theory board going in my head, and I was so sure Yoo Seok was the villain. I was wrong, obviously, but the ride to get there was so much fun.
Edge-of-Your-Seat Suspense
There were so many scenes that had me completely on edge. Like when the brother held the pencil right in front of Jin Seok’s eye , that was intense. Or the mysterious room with all those strange sounds. The best part was the feeling that everyone in the movie knew what was going on, except for Jin Seok and the audience. It made the whole experience so gripping. Unlike some thrillers that take ages to get interesting, this one had me hooked right from the beginning and never let go.
The Psychological Element
One of the craziest things about this movie is how realistic Jin Seok’s mental struggle was. It was something that can actually happen. While I’m no expert in psychology, I do know that when people experience extreme trauma, the brain sometimes can’t handle it and can block it out completely as a coping mechanism. I remember learning in high school that some people can go their entire lives without ever remembering a traumatic event. Therapy might help uncover it, but sometimes the brain even fabricates memories to fill in the gaps, leaving the real events completely buried.
And I’m not trying to scare anybody, but it really does make you look at Jin Seok’s situation differently. In Jin Seok’s case, I think it all came down to the fact that the family’s deaths were accidental. He never wanted to hurt them and he was even ready to leave. But when things spiraled out of control and he caused their deaths by accident, his guilt was so overwhelming that his mind just shut it out. I feel like I should mention that I’m not justifying his actions in any way, it’s just so interesting to think about.
What’s even crazier is that he wasn’t “on the run” all these years, he genuinely didn’t remember what happened. And when his memories finally came flooding back, it made sense why his brain had locked them away. By the end, the guilt had completely consumed him, leaving him a shell of the person he once was.
This layer of psychological realism makes the movie even more fascinating and honestly, so good!
A Tragic but Perfect Ending
Okay, this is gonna sound dark, but something about when a character dies right after getting what they wanted, makes the ending. It’s sad, yes — but also poetic. That’s exactly what happened here. Yoo Seok finally got the confession, completed his lifelong mission, and then ended his life. I’m not glorifying suicide, obviously, but narratively, it tied everything up in such a haunting, full-circle way. The story began with tragedy, and it ended with one too. It just… made sense.
No Time Wasted
One of the best things about Forgotten is that it gets right to the point. No drawn-out build-up or slow-burn nonsense. I watched this with my dad and stepmom, both of whom have zero patience when a plot drags, and even they were fully locked in from the jump. That’s how you know the pacing was done right.
The Bad
The House Was Just… There?
This didn’t even hit me until I was writing the description, but what was the actual point of Jin Seok being in that house? I get the obvious and that Yoo Seok planned everything to trap Jin Seok and get a confession, but the house barely played a role in helping him remember the murder. Jin Seok didn’t start recovering his memories until after he left and ended up in that interrogation/hospital room. So what was the point of having him live there? It felt like they were just messing with him for fun instead of using the space to trigger a sense of déjà vu or dropping subtle hints tied to the murder. The whole “playing house” setup came off as psychological manipulation without a real payoff.
Lack of Flow
I love a good mystery that keeps me guessing , but only if the clues were there all along. In Forgotten, the twist works because it blindsides you — but maybe too much. We weren’t just left in the dark, we were locked in a pitch-black basement with no flashlight. The murder plot came out of nowhere because there were zero hints leading to it. We were busy debating between “A” and “B,” only to find out the answer was “R,” — which we didn’t even know was an option.
Take the kidnapping, for example. It was juicy, sure, but what was the point? Why couldn’t Yoo Seok just say he needed to leave for a while? The kidnapping didn’t tie into Jin Seok’s memories or the murder at all. If it had triggered flashbacks, then it would’ve felt more intentional, but instead, it was just there.
And what was up with the brother’s personality switch? When Yoo Seok returned, he acted totally different — but it once again didn’t connect to the murder storyline. It just felt like a wasted detail. Yoo Seok was supposed to be pulling off this genius plan to get Jin Seok to confess, but halfway through, it’s like he stopped trying. The movie was so focused on making the brother seem suspicious that they forgot the whole point was getting a confession. Jin Seok didn’t even have a cool “aha” moment where it all tied back to the house, it was just some pictures and therapy. If they wanted to really mess with his head, they could’ve done it in a way that was darker, longer, and tied more to the house.
Plot Overload
This one’s quick because I kinda already said it, but still, Forgotten felt like it couldn’t decide what kind of story it wanted to be. The movie felt torn between two big plots: the brother’s kidnapping and the murder. They were both treated like main events, but one had to take a backseat and that’s what happened.
At first, the house was the problem. Then it shifted to the brother being the problem. By the end, we learned Jin Seok was the real and only problem. These are all huge storylines, and instead of layering them meaningfully, they kind of just threw them at us in phases. If you’re juggling plots this big, you’ve got to decide which one is the main story and make the others smaller subplots. The kidnapping had way too much attention for something that ended up being insignificant. Maybe next time, they could stick to one big plot, stretch the runtime, or split the story into multiple movies to flesh everything out properly.
The Trailer Lied (a little)
Okay, this isn’t a huge deal, but the trailer was kind of misleading. The trailer heavily sold this as a “my-brother-isn’t-my-brother” thriller, only for that to not even be the main storyline. Definitely had me fooled for a bit and I’m glad the storyline was good despite this or we would’ve had problems.
What I Would Do
Pick a Lane and Drive It All the Way
Like I mentioned earlier, one of the film’s biggest flaws was trying to juggle too many main plots. The house, the brother, the kidnapping, the murder — there was just too much going on for one to shine. Since the murder was clearly the real core of the story, I would’ve leaned into that from the jump. That doesn’t mean spoiling it early, but giving just enough hints so when the reveal hits, it feels earned and not random. Here’s how I’d rework that:
Breadcrumbs Galore:
If the murder was the main twist, I’d leave small clues sprinkled throughout — just enough to make you think “it was there all along, we just didn’t notice.” on rewatch. The “family” could drop weird lines that don’t quite fit. The landlady (who I’d add and would also an actor in my version) would’ve been part of the set up. The family could mention how she’s been there for years and knew about the previous family’s tragic death. The landlady would mention strange details that Jin Seok subconsciously recognises. Maybe he accidentally finds an old article about the crime, or sees a photo that weirdly unsettles him. Just little red flags that build tension over time, instead of dropping the whole truth like a bucket of cold water in the third act.
The House Would Feel Familiar:
Since the house itself is such a key part of the murder, I’d make it a bigger player in the story. If Jin Seok committed the murder in that house, it should haunt him — even before he remembers. From the first moment he steps inside, he should feel like something’s off. Not in a horror way, but in that creepy, “Have I been here before?” kind of way. That tension should build day by day with random moments, eerie feelings, and flashes of something forgotten.
And then finally , when things start to unravel, his memory snaps back in a big scene. Maybe he’s triggered by something the “brother” says. He rushes to the locked room, expecting answers and, this time, it’s not a surveillance room like before. It’s the room. The exact room where it all happened. The layout, the bloodstains (faded but still visible), the same eerie quiet. That room would serve as the final puzzle piece to unlock his memories. It would be such a powerful full-circle moment and way more impactful than just showing him pictures and saying, “You did this, remember?”
Final Thoughts
Like I said in my previous review, this movie is one of my top-rated dramas. I absolutely love psychological thrillers, and this movie really knew how to deliver. From the constant twists to that hauntingly poetic ending, it had me hooked from start to finish. It’s no surprise I gave it a solid 9.0/10.
That said, once you peel back the layers and look a bit closer, you start noticing the cracks — like the multiple main plots fighting for the spotlight, or a kidnapping arc that ended up doing nothing but confuse everyone. It’s one of those films where your first watch is a wild ride, but your second has you raising your eyebrows a few times.
Still, no movie is perfect, and this one delivered where it really mattered. It’s one of those thrillers you wish you could experience again for the first time. And if you do decide to rewatch it, just don’t think too hard about the plot holes and do what I did: dramatically gasp, pretend you didn’t see them, and keep the popcorn coming!
What did you think? Were you on the edge of your seat like I was?? Did you pick up on anything along the way? Let’s talk about it!
See you next week! Another top rated drama (series this time) is coming! 💕
Hint: Sometimes people can sing but not really act- in this case, she can do both! Also one of the characters in this drama, is also in a drama I reviewed before!🙌
Find Your Next Watch!
Main Cast
Kang Ha Neul as Song Jin Seok
Kim Mu Yeol as Yoo Seok
Themes/ Genres
Psychological Thriller, Mystery, Suspense, Drama
Memory Loss, Identity Crisis, Trauma, Repressed Memories, Family Secrets, Deception, Betrayal, Revenge, Psychological Manipulation