Overview: “Mousetrap” Kdrama (also known as “Field Mouse”) is a Netflix original drama series that released on August 28, 2026, and starring Ryu Jun Yeol, Sul Kyung Gu, and Lee Kyu Hyung. It will tell the story of a novelist who was entirely dependent on his close friend for his existence to the outside world because of his social anxiety, but soon he discovers that his friend has disappeared and his identity has been stolen.
| Genre | Mystery, Thriller, Psychological |
| Episodes | 10 |
| Watch Online* | Netflix |
| Director | Kim Hong Seon |
| Scriptwriter | Lee Jae Gon |
| Air Time & Schedule | Friday (All Episodes) |

Table of Contents
- Synopsis
- Main Cast & Characters
- Still Cuts
- Notes & Facts
- Trailers & Clips
- Episodes 1, 2, 3,…., Highlights
Synopsis
“Mousetrap” Korean drama tells the story of reclusive novelist Je Moon Jae, whose name, identity, property, and even access to his phone are suddenly taken by someone known as “Rat.” When his only friend also disappears, Moon Jae starts searching for Rat to get his life back. His search leads him to Noja, a calm but dangerous loan shark who runs a private detective agency. Noja has been looking for Moon Jae for three years after Moon Jae borrowed money from him and disappeared. He joins the search for Rat to get his money back.
Main Cast & Characters
- Ryu Jun Yeol as Je Moon Jae / Field Mouse (a novelist)
- Sul Kyung Gu as No Ja / Old master / Kim Yeong Geun (a loan shark)
- Lee Kyu Hyung as Park Sun Yong (a detective)
Still Cuts





Notes & Facts
- Ryu Jun Yeol earlier starred in Korean drama “The 8 Show” (2024).
- Sul Kyung Gu earlier starred in Korean drama “Hyper Knife” (2025).
- Lee Kyu Hyung earlier starred in Korean drama “Kick Kick Kick Kick” (2025).
- This Netflix series is based on the Kakao webtoon “Field Mouse” created by Ludovico.
Trailers & Clips
This is the official trailer of “Mousetrap” that shows the thriller journey of a man who got his entire existence stolen.
*Drama is subject to regional availability.







