I’ll be honest, I went into Episode 6 of Mousetrap thinking the show couldn’t possibly top the gut-punch it delivered last week. I was wrong. This episode takes the identity-swap mystery and cranks it up several notches, mixing a car chase, a shocking family secret, and a genuinely unsettling knife scene into one hour of television. If you’re searching for a full Mousetrap Episode 6 recap and review, here’s everything that went down, plus my take on where the story is heading.
The Rat Taunts Moon-jae and Walks Into a Police Station
Mousetrap Episode 6 opens with the Rat calling Moon-jae just to mess with him, throwing his own words back at him like some twisted party trick. It’s a small moment, but it sets the tone for how confident and unbothered the Rat has become. We then cut to a flashback of Yu-min beating up Moon-jae, with Moon-jae accusing him of jealousy. That flashback matters a lot more by the end of the hour, trust me.
From there, the Rat pulls an incredibly bold move. He shows up at the police station with a lawyer and Han Ji-hye, Moon-jae’s editor, in tow, claiming he wants to file a complaint about someone impersonating him using plastic surgery. It’s a brilliant flip of the script, and Detective Park clearly isn’t buying it. Park asks why the Rat picked a station nowhere near his home, and the Rat brushes it off by saying he’d simply heard about the investigation and figured it was convenient. Suspicious? Absolutely.
Chasing Down Han Ji-hye
While all that’s unfolding, Noja and Moon-jae are doing their own detective work, trying to track down Han Ji-hye. On the road, Moon-jae admits something kind of sad: he worked with Ji-hye for over a year but only ever met her face-to-face a handful of times. That distance becomes a real plot point once they discover Ji-hye has started her own publishing company at a brand-new address.
Here’s the catch, though. The Rat gets there first. Over coffee, Ji-hye tells him he seems different now, less shy than she remembered. Before that conversation can go anywhere, she gets a call from the real Moon-jae begging her to meet him. She agrees, and the two connect at a restaurant, where Moon-jae makes his case directly: she’s the one person who might actually be able to prove the difference between him and his impostor. The moment is cut short when the cops show up and Noja and Moon-jae are forced to bolt, though not before Moon-jae leaves a bottle of pills behind on the table, almost like a breadcrumb.
Detective Park later tells Ji-hye to skip the emergency line next time and contact him directly. Meanwhile, Noja doesn’t hold back with Moon-jae, pointing out that he really should have people in his life who can vouch for who he is. Fair point.
Detective Park Digs Deeper Into Two Very Different Alibis
This is where the investigation starts picking up serious steam. Park learns that “Moon-jae” was spotted around his own residential building buying beer and grabbing takeout, which is a massive red flag considering the real Moon-jae supposedly hadn’t left his apartment in three years. When Park calls the Rat and asks about his alibi for the time of Mi-yeong’s murder, the Rat claims he was holed up in a rented house for ten days working on his writing. The landlady backs him up, and CCTV footage seals the alibi.
On a separate front, Han-su is forced to hand off the gambling ring case to the major crimes division. That doesn’t stop Park from confronting Myeong-su, revealing that Seung-gyu has already fled overseas and left him holding the bag. Park also drops a bombshell: he knows Myeong-su is actually Kwak Sang-cheol, a wanted fugitive who was believed to have escaped to the Philippines. In truth, Myeong-su never left the country. Seung-gyu simply helped him vanish into a new identity, and now Seung-gyu has done the exact same trick for himself.
Park offers Myeong-su a deal: keep his true identity buried in exchange for giving up Seung-gyu. Myeong-su takes it, and everything about Seung-gyu’s identity-fraud operation comes pouring out. This subplot has been simmering for a while, and it finally boils over here.
A Knife, a Bottle of Pills, and a Very Bad Sign for Han Ji-hye
Back with our main duo, Moon-jae wakes up in the car to find Noja waiting outside. Noja tells him they’re heading to his hometown to lay low for a while, which honestly feels like the smartest move either of them has made all season.
Meanwhile, Han Ji-hye pays the Rat a visit and makes the mistake of leaving that pill bottle visible in her bag. He clocks it instantly and realizes she’s onto him. His response? Pulling out a knife and wondering out loud what to do next. It’s a chilling little beat, made worse by how casual he is about it.
Back at the station, Myeong-su finally names the true architect of this whole nightmare: Yu-min. According to Myeong-su, he stumbled onto Yu-min standing over someone else’s dead body, and the two struck a deal on the spot. Myeong-su would help fake Yu-min’s death, and in exchange, Yu-min promised him a fresh start far away from Seung-gyu’s grip. Except Yu-min came back with a brand-new face. When Park asks Myeong-su if he can tell the two Moon-jaes apart, Myeong-su says he absolutely can, for the right price, of course.
The Magazine Photo That Changes Everything
Noja and Moon-jae hole up in a house belonging to one of Noja’s monk friends, and this is where the episode’s biggest gut-punch lands. Noja’s colleague Min-gi has been digging into the case and confirms that Moon-jae’s own face is in the CCTV footage from Mi-yeong’s death scene, with witnesses placing him right outside the building.
Then Noja pulls out an old literary magazine featuring a photo of Moon-jae’s parents (his father was also a writer) alongside a young boy identified as their son, Moon-jae. Here’s the twist that had me rewinding: the issue was published a full year before Moon-jae was even born. So who is the kid in the photo?
Moon-jae has zero memory of his parents ever having another child, which makes the revelation land even harder. Noja tells him he has an uncle, and that meeting him is the only way to confirm Moon-jae’s real identity. The two are mid-argument about it when one of the island attackers crashes through the door.
A Brutal Fight, a Gunshot, and a High-Speed Chase
What follows is one of the most intense sequences the show has pulled off yet. A vicious fight breaks out between Noja and the attacker, and Moon-jae ends up shot in the process. Noja hauls him to the car, only to realize the police are already closing in. In a split-second decision, he drops Moon-jae in the grass beside the road and calls Min-gi to come rescue him, then floors it straight through the police blockade with the attacker in hot pursuit.
What ensues is a full-blown car chase involving both vehicles and the entire police force. It’s chaotic, loud, and shot with a kinetic energy that makes it genuinely hard to look away from.
Left wounded on the roadside, Moon-jae gets a text from Noja containing his uncle’s address. As he lies there, a memory surfaces: the face of an older man from his parents’ funeral. The episode closes on a cliffhanger, with a car pulling up and three figures stepping out and walking toward him.
Oh, and one more thread worth mentioning: Seung-gyu tells his men that Noja killed Dong-seok purely out of jealousy over the praise he was getting. File that away for later.
Review: Mousetrap Just Pulled Off Its Biggest Twist Yet
Episode 6 takes everything Episode 5 set up and flips it completely on its head. Just when it looked like the Rat couldn’t possibly be Yu-min, the show reveals that he is, and that faking his own death was the price of admission. I’ll admit, it’s a little strange that someone as sharp as Noja apparently believed a person’s death couldn’t be faked, even for a few minutes, but I’m willing to let that slide given everything else going on.
The second half of the episode is where things really get tangled, in the best way. That literary magazine photo raises questions I genuinely can’t stop thinking about. Did Moon-jae have an older brother nobody ever mentioned? How did he go his whole life without knowing? And why does this mystery kid share his exact name? It also retroactively makes sense of that eerie vision of his mother urging him to be “the better Moon-jae,” a line that felt cryptic before and now feels loaded with meaning.
Where the show still has some explaining to do is how Yu-min connects to all of this. But I love that the writers are asking these questions while Noja and Moon-jae are literally running for their lives, because it keeps the tension from ever letting up.
As always, the action is where this series absolutely shines. The house fight against the assassin is shot with a camera that moves right alongside the combatants, giving it a raw, dynamic feel instead of the usual static coverage. The car chase afterward matches that same energy, layering in enough moving pieces on the road that it feels genuinely tense rather than just loud for the sake of it.
If I have one complaint, it’s Han Ji-hye’s introduction. She’s an interesting addition since she’s one of the only people who’s actually met Moon-jae in person, but she’s arrived so late in the story that it’s hard to feel emotionally invested in her yet. Hopefully the show gives her more room to breathe going forward, because right now she feels more like a plot device than a character.
Overall, Episode 6 of Mousetrap is easily one of the strongest hours the series has delivered, packed with a jaw-dropping family mystery, a menacing new side of the Rat, and action sequences that back up every ounce of tension the writing builds.
