Netflix’s Korean thriller Mousetrap (Korean title: 들쥐) premiered on August 28, 2026, starring Ryu Jun-yeol and Sul Kyung-gu. The ten-episode limited series, based on the Kakao webtoon Field Mouse, follows a reclusive novelist whose identity is stolen by a mysterious figure known as “The Rat.”
Mousetrap Soundtrack Details
| Detail | Information |
|---|---|
| Series | Mousetrap (들쥐) |
| Director | Kim Hong-sun |
| Production | Kakao Entertainment, C-JeS Studios, H House, Studio PIM |
| Platform | Netflix |
| Series Release Date | August 28, 2026 |
| Composer | Kim Tae-seong |
Mousetrap Soundtrack Overview
The score for Mousetrap is composed by Kim Tae-seong, a veteran South Korean film and television composer known for scoring tense, high-stakes thrillers. His work anchors the show’s identity-theft mystery, built around director Kim Hong-sun’s suspense-driven storytelling.
Who Composed Mousetrap Soundtrack?
Kim Tae-seong is a South Korean composer born August 4, 1979, active in the industry since 2002. He has scored major Korean films including War of the Arrows (2011), The Admiral: Roaring Currents (2014), 1987: When the Day Comes (2017), Extreme Job (2019), Space Sweepers (2021), and The Roundup (2022).
Notably, he previously scored The Guest (2018), a series also directed by Kim Hong-sun — making Mousetrap a reunion between director and composer rather than a first-time collaboration.
Kim Tae-seong Filmography (Select Credits)
| Year | Title | Type |
|---|---|---|
| 2008 | Crossing | Film |
| 2011 | War of the Arrows | Film |
| 2014 | The Admiral: Roaring Currents | Film |
| 2014 | Emergency Couple | TV |
| 2016 | Squad 38 | TV |
| 2017 | 1987: When the Day Comes | Film |
| 2017 | Bad Guys 2 | TV |
| 2018 | The Guest | TV |
| 2019 | Extreme Job | Film |
| 2021 | Space Sweepers | Film |
| 2022 | The Roundup | Film |
| 2022 | My Liberation Notes | TV |
| 2026 | Mousetrap | TV |
| 2024 | Chicken Nugget | TV |
Mousetrap Cast
- Ryu Jun-yeol as Je Moon-jae, the reclusive novelist whose identity is stolen
- Sul Kyung-gu as No-ja, a loan shark who becomes his unlikely ally
- Lee Kyu-hyung as Sun-yong, the detective chasing the figure known as “The Rat”
Where to Listen to Mousetrap Soundtrack?
![Mousetrap | Official Trailer | Netflix [ENG SUB]](https://i.ytimg.com/vi/UCTSqqHeMHw/hqdefault.jpg "Mousetrap Soundtrack (2026-) 1")
Mousetrap streams exclusively on Netflix, with the score playing alongside all ten episodes of the series.
FAQs
Who composed the Mousetrap soundtrack?
South Korean composer Kim Tae-seong, known for Space Sweepers, The Roundup, and 1987: When the Day Comes, scored Mousetrap.
How many episodes does Mousetrap have?
Ten episodes, released all at once as a limited series on August 28, 2026.
Where can I stream Mousetrap?
Mousetrap is a Netflix original and streams exclusively on Netflix.
Has Kim Tae-seong worked with Mousetrap’s director before?
Yes. He previously scored The Guest (2018), also directed by Kim Hong-sun.
When did Mousetrap premiere on Netflix?
August 28, 2026.
What is Mousetrap based on?
The Kakao webtoon Field Mouse by Ludovico, inspired by a Korean folktale about a rat that takes human form.
Has Kim Tae-seong scored other Netflix titles?
Yes, he composed the score for Space Sweepers (2021), a Netflix original film.
Was Mousetrap originally announced under a different title?
Yes. The series was first revealed in 2025 under the working title The Rat before Netflix confirmed the final title Mousetrap ahead of its August 28, 2026 premiere.
Related reading: browse more TV soundtrack guides, our Netflix soundtrack hub, and Kim Tae-seong’s prior K-drama score for Chicken Nugget (2024).