Mousetrap Netflix Review: Is This Identity Thriller Worth Binging?
The Binge Team- August 30, 2026
Mousetrap (들쥐) was released worldwide on August 28, 2026, and it's already one of my all-time favorite horror series. It takes an old Korean folk story about a rat that eats a person's fingernails and turns it into a dark, modern crime horror that will keep you on the edge of your seat. I went into this 10-episode Netflix series expecting a typical mystery with a different cast of characters, but I was hooked right away by Ryu Jun-yeol as the reclusive novelist Je Moon-jae and Sul Kyung-gu as the ruthless loan shark No-ja.
I've been searching for a thriller that feels as eerie as The Art of Sarah and Strangers from Hell, and this wild, adrenaline-fueled ride had my full attention from the start. So, let's take a closer look at why I think this identity-theft mystery has become such a gripping watch.
Mousetrap: What Is the New Netflix Korean Series About?
I was immediately hooked by Je Moon-jae, a renowned writer who lives an extremely secluded life. He stays inside almost all the time, follows a strict daily routine, and relies on his manager to handle nearly all of his interactions with the outside world.
Then, one morning, his entire life falls apart.
His phone suddenly doesn't recognize his fingerprint, his bank accounts have been emptied, and his manager mysteriously disappears. I could practically feel my stomach drop as Moon-jae realizes that someone has taken over his life. A shadowy figure known as "The Rat" has somehow stolen his name, his face, his home, and even his research.
Desperate to get his life back, Moon-jae makes a deal with the most frightening loan shark in town, Noja (Sul Kyung-gu). But Noja isn't exactly the kind of person you want to owe money to. As an exhausted detective enters the case, I found myself getting completely pulled into a dark world of identity theft, deception, and psychological warfare, with Park Sun-yong (Lee Kyoo-hyung) right in the middle of it.
Mousetrap Episodes 1-5: What to Expect
The first half of the series was super creepy and claustrophobic, and I honestly couldn't stop watching. After Moon-jae's carefully controlled routine was destroyed in Episode 1, I was genuinely scared when he had to prove his identity to the local police officers right outside his own front door.
By Episodes 2 and 3, the pace really started to pick up once Noja entered the picture. Their forced alliance was so much fun to watch because it brought some dark humor into an otherwise seriously tense story. I found it especially hilarious that Noja had absolutely no interest in philosophical questions like, "What does it mean to be a person?" or anything along those lines. He was much more interested in one thing: getting paid.
Episodes 4 and 5 were where the story really grabbed me. The focus shifted toward figuring out how "The Rat" had managed to recreate almost every part of Moon-jae's life. I found myself constantly questioning the characters around him, keeping my phone open to take notes, and changing my theories every five minutes.
Was Moon-jae really an innocent victim? Or was I watching a man with a much darker secret, someone who had unknowingly allowed this parasite to enter his life?
That uncertainty had me completely hooked.
Mousetrap Review: What I Loved
I have to talk about the acting because I was completely captivated by our leads. I couldn't take my eyes off Ryu Jun-yeol as Moon-jae. He brought such a desperate, unhinged vulnerability to the character, and I thought it was absolutely incredible. You can feel his fear and desperation in almost every scene.
Sul Kyung-gu, meanwhile, had one of the most incredible screen presences as Noja. I swear, I laughed every time he walked into a room because you never knew what he was going to do next. For me, the tension between this shy, frightened writer and a ruthless loan shark is a huge part of what makes the series work. Their reluctant partnership is the kind of character dynamic I'll probably be thinking about for a long time.
I also really enjoyed the fight choreography. Every punch felt heavy, dangerous, and painfully real. I'm usually a fan of action scenes that have a polished, carefully choreographed feel, but here, I could almost feel every hit. Whether it was the alleyway fight or the confrontation in a cramped space, the violence had a rawness that made the scenes much more intense.
And I absolutely loved what the writers did with the original folktale. They took this unsettling story about a shapeshifting rat and turned it into a modern crime thriller about identity theft. I thought that idea was incredibly fresh, disturbing, and psychological. It's such an unusual concept, and the way Mousetrap brings it into a modern setting made the story even more fascinating to me.
What Didn't Work for Me in Mousetrap
But to be honest, there were a few moments when the show lost me a little. The writing tried to do too many things in Episodes 8 and 9, making the story much more complicated than it needed to be. Of course, that's just my personal opinion. The introduction of rogue mercenaries, strange police politics, and some almost impossible escapes made the story feel a little less grounded than it had in the earlier episodes.
I also had a few issues with some of the decisions made by the supporting characters in those later episodes. At times, I found myself frustrated with them for making choices that didn't make much sense, seemingly just to keep the central mystery going a little longer. It was only a minor annoyance, but it did take away some of the grounded realism that I really appreciated in the opening episodes.
Mousetrap Ending Explained: My Reaction to the Final Twist
Episode 10 completely changed the way I looked at the entire identity-theft story, and I was honestly amazed. I just sat there with my mouth open.
The ending completely turns your interpretation of the characters you've spent 10 hours watching upside down. The writers take the idea of identity theft and throw in a massive twist instead of giving us the standard ending where the bad guys are caught, and the victim simply gets his life back. I sat on my couch with my jaw on the floor as the mystery finally came together, and I realized that the clues had been there all along, going right back to Episode 1.
I won't give away any specific details about the ending, but I can say that the story shifts from an action-packed physical chase into a much more psychological battle. A final clue discovered by Detective Sun-yong leads to a dramatic showdown on a ferry heading toward Jeju, where one character will go to extreme lengths to protect the life he believes he deserves.
You don't get a neat, perfectly wrapped-up ending, but I really liked the way the series concluded. It was dark, unsettling, and surprisingly poetic. This Korean series isn't only concerned with legal justice; instead, it delivers a psychologically devastating form of punishment, leaving the characters to live with the consequences of their own decisions.
It's the kind of conclusion that makes you want to go straight back to Episode 1 and watch everything again, just to see how all the pieces fit together from the beginning.
✦ Watch This If You Loved
I’d definitely recommend Mousetrap to anyone who enjoys dark, psychological thrillers, especially if you like stories about identity, deception, and unlikely partnerships. The dynamic between Moon-jae and Noja is easily one of the best parts of the series.
Looking for more dramas like Mousetrap? Check out our similar picks below:
Drama Info
TitleMousetrap (2026)
Total
Episodes10 (Complete)
Episodes10 (Complete)
Review10 Episodes
CountrySouth Korea
Genre
Psychological Thriller · Mystery
Release DateAug 28th 2026 · Netflix Original
Stream
🎬 Netflix
Main Cast
MAB Score
8.5/10
Overall Rating
Story
Acting
Cinematography
Rewatch Value — 6.9/10
I’d go back to certain episodes mainly for Ryu Jun-yeol and Sul Kyung-gu’s chemistry. Even though some of the later twists won't have the same impact the second time around, their scenes are still worth watching again.