Mousetrap Review: ★★★☆☆ (3/5)
Mousetrap has a genuinely terrifying premise about identity theft, backed by strong performances from Ryu Jun-yeol and Sul Kyung-gu, but its painfully slow pacing keeps the series from ever reaching the thrilling heights it clearly aims for.
Rating: ★★★☆☆ (3/5)
Platform: Netflix
Genre: Psychological Thriller
Episodes: 10
Language: Korean
Cast: Ryu Jun-yeol, Sul Kyung-gu, Lee Kyu-hyung
The idea of having your identity stolen is unsettling enough on its own, but Netflix’s new Korean thriller Mousetrap takes that fear to a whole new level.
The series follows Je Moon-jae, a reclusive novelist whose carefully controlled, repetitive life gets completely upended when he suddenly finds himself locked out of his phone, apartment, and bank account, with absolutely no way to prove who he actually is.
Directed by Kim Hong-sun and based on the webtoon Field Mouse, Mousetrap wastes no time throwing its protagonist into chaos. Moon-jae, a man who has not left his home in three years due to severe anxiety, wakes up one day to discover that everything tied to his identity has vanished.
His apartment has been sold, his accounts are inaccessible, and whenever he asks who authorized any of it, the answer he keeps getting is simply that he did. Things escalate even further when he crosses paths with a ruthless loan shark known as The Rat, played by Sul Kyung-gu, and discovers that the person who stole his identity did not just take his name and accounts but somehow his face as well.
The premise here is genuinely unsettling, largely because of how relatable the smaller details feel. The idea of being locked out of your own phone is something almost anyone can imagine happening, which makes the show’s escalating nightmare scenario land even harder.
The series smartly draws from an old Korean folktale about a rat that turns into a human after eating someone’s fingernail clippings, weaving that folklore into its modern identity theft plot in a way that feels genuinely clever rather than gimmicky.
Rather than leaning into supernatural horror, Mousetrap stays grounded in psychological dread built around technology, personal data, and the fragile nature of identity itself.
Ryu Jun-yeol does strong work as Moon-jae, capturing his character’s confusion and mounting panic with real conviction as his once predictable life spirals completely out of control. The problem is that the show never gives audiences much beyond that panic to hold onto.
Across ten hour-long episodes, we learn surprisingly little about who Moon-jae actually is beyond his anxious, rule-bound routine, which makes it harder to fully invest in his predicament the way the show clearly wants you to. Sul Kyung-gu, despite being a genuinely excellent performer, runs into a similar issue, playing a compelling character who simply is not given enough depth or backstory to fully land.
Visually, the series is a genuine standout. Director Kim Hong-sun brings a stylish, moody atmosphere to every scene, paired with a relentless, tension-building score that makes even simple moments feel loaded with dread.
Unfortunately, that same deliberate style often works against the show’s pacing. Scenes frequently stretch on far longer than they need to, and the overall story takes so long to get where it is going that patience becomes a real requirement.
Similar Article: Dark Matter Season 2 Review
The crime thriller elements, which should feel tense and urgent, often lose their momentum simply because the show refuses to move quickly, even when a scene has clearly made its point.
At its core, Mousetrap seems less interested in simply identifying the person behind the theft and more interested in asking bigger questions about what actually makes someone who they are, and how much of our identity depends on the people around us.
That is a genuinely interesting angle for a thriller to explore, and the show does eventually pay it off with a satisfying, well-earned reveal. The problem is getting there requires more patience than the pacing probably deserves.
In the end, Mousetrap has all the ingredients of a genuinely gripping psychological thriller, backed by a fascinating premise and committed performances. But its slow, deliberate pacing keeps it from ever fully delivering on that promise, making for a series that is intriguing in bursts rather than consistently gripping from start to finish.