Mousetrap on Netflix Just Beat Its Own Debut Numbers

Mousetrap just did something most Netflix K-dramas don't: it got bigger in its second week instead of smaller. The identity-theft thriller starring Ryu Jun-yeol and Sol Kyung-gu is now the No. 1 show on Netflix's global non-English TV chart, and the way it got there is the more interesting part of the story.

Netflix chart data for Mousetrap's second week, alongside its September 2026 premiere details

The Numbers, and Why They're Unusual

Most Netflix Originals peak in week one, when the algorithm shoves them in front of everyone at once, then taper off from there. Mousetrap did the opposite. Screen Rant, citing Netflix's own hours-viewed data, clocked 41.5 million hours watched in its second week on the service, more than double the 19.2 million hours it logged on debut. The Korea Times, working from Netflix's separate views-based Top 10 ranking, put the same tracking week (Aug. 31–Sept. 6) at 4.4 million views. That's good enough for No. 1 on the non-English chart and a top-10 spot in 45 countries. It topped the local chart outright in four: Korea, Bangladesh, Malaysia, and Pakistan.

That's word-of-mouth doing actual work, not a marketing push. Three other Korean titles rode the same chart that week: Four Hands, Two Sonatas debuted at No. 5, Our Sticky Love held on at No. 7 for a fifth straight week, and Spooky in Love was still there at No. 10 in its eighth. Mousetrap jumping past all of them in week two, after word had time to spread, says more about the show than a strong opening weekend ever could.

What You're Actually Signing Up For

All 10 episodes dropped at once on August 28, so this is a binge, not a weekly watch. The premise: a reclusive novelist named Je Moon-jae, played by Ryu Jun-yeol, gets systematically erased. His fingerprint stops unlocking his own phone, his passwords die, his name stops working, all courtesy of a figure calling himself "The Rat." Sol Kyung-gu plays No-ja, a loan shark who ends up dragged into the hunt for whoever's doing it.

The folktale hook is the part I didn't expect to like as much as I did. The whole "Rat" concept comes straight from an old Korean superstition: a field mouse that eats a person's clipped fingernails can supposedly take on that person's exact form. The source webtoon is literally called Field Mouse. It's a genuinely creepy premise to build a psychological thriller on, and the show leans into it rather than treating it as a throwaway detail.

Director Kim Hong-sun has a track record worth knowing if you're deciding whether to trust this one: he also made Voice, The Guest, and last year's Dear Hongrang. If any of those worked for you, his instincts for this genre are already a known quantity going in.

The Reviews Split Exactly Where You'd Guess

Here's my honest read after going through both the show and what critics said about it: the ending is strong, the middle three episodes are not. Sarah Musnicky at But Why Tho? called it "a case of one too many twists," adding that Mousetrap is "a lesson that sometimes less is more." She's not wrong about the pacing sag once the show starts stacking reveals on top of reveals. Shabnam Jahan at K-Waves and Beyond landed somewhere similar, praising it as "an excellent psychological thriller" with "some great performances" while flagging that "there are times when the series starts paying too much attention to keeping secrets from viewers."

A critic's verdict on Mousetrap's pacing, printed as a pull quote

I'd put it this way: episodes 1, 2, and the final two are where the show actually earns its chart position. If you're the type who bails on a series once it starts feeling like it's stalling, push through the middle stretch anyway. The payoff in the back half is real, not a cop-out.

The Cast, and a Press Photo That's Weirdly On-Brand

Ryu Jun-yeol, Sol Kyung-gu, director Kim Hong-sun, and Lee Kyu-hyung biting their fingernails at the Mousetrap press conference, CC BY-SA 4.0, Republic of Korea (Korea.net) via Wikimedia Commons

That's Ryu Jun-yeol, Sol Kyung-gu, director Kim Hong-sun, and Lee Kyu-hyung (who plays detective Sun-yong) at the show's press event, and yes, every one of them is doing the nail-biting gesture on purpose. Whoever ran that photocall clearly read the same folktale explainer I did.

For anyone who wants the trailer before committing to a 10-episode weekend:

Watching From Outside Korea

Mousetrap is a Netflix Original, so it's live in every region Netflix operates in, subtitled from the same August 28 drop. No staggered international rollout to wait out, no region lock to route around. Runtimes run long for a K-drama, 49 to 64 minutes an episode, so budget more like a movie marathon than a typical binge weekend. Nobody outside Korea needs to hunt for a workaround here, and that's part of why the week-two number could climb the way it did.

My score: 7/10. Worth clearing a weekend for, but I'm not going to defend every episode. If you've already finished it, I want to know where you landed on the finale. It's the kind of ending people either read as poetic or read as a cheat, and I haven't found much middle ground in the reactions I've seen so far.


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