First Look & Q3 2026 Release

The exciting webtoon adaptation of Field Mouse is coming to Netflix in Q3 2026! Given the alternate title of Mousetrap, the k-drama will star Sul Kyung Gu and Ryu Jun Yeol. Here’s everything we know about Mousetrap on Netflix.

Mousetrap (formerly titled The Rat) is an upcoming South Korean Netflix Original thriller directed by Kim Hong Seon. It is the adaptation of the South Korean webtoon Field Mouse by Ludvico.

When is the Netflix release date for Mousetrap?

Confirmed in Netflix’s 2026 Korean slate, Mousetrap will be released globally on Netflix in Q3 2026 (July-September).

We expect to see a full release date later this year.

Picture: Ryu Jun Yeol as Je Mun Jae in Mousetrap – Netflix

What is the plot of Mousetrap?

A synopsis has been provided for Mousetrap:

“Moon Jae, a reclusive writer, finds that the fingerprint recognition on his phone fails, and even the friend who had helped him manage everything disappears. With no way left to prove that he is truly Moon Jae, he learns that a mysterious person called “Rat” has taken his name, identity, and fortune. Determined to reclaim his life, he begins to pursue him.”

Picture: Sul Kyung Gu as No Ja in Mousetrap

Who are the cast members of Mousetrap?

Ryu Jun Yeol plays Je Mun Jae. The actor previously starred in the Netflix K-drama The 8 Show. He previously starred in leading roles in K-dramas such as Lost, Lucky Romance, and Reply 1988. He has also starred in films such as Alienoid, Little Forest, A Taxi Driver, and Money.

The character of Je Mun Jae has been described as:

“A novelist living in isolation due to social phobia. Leading a quiet life, the same every day, Moon Jae suddenly finds himself stripped of everything by the mysterious “Rat”.”

Picture: Ryu Jun Yeol (left) and as Bae Jin Su in The 8 Show (right) – Netflix

Sul Kyung Gu plays No Ja. The actor starred in the Netflix K-drama The Whirlwind. He has predominantly starred in films over dramas, having starred in Netflix’s Mantis and Kill Bok Soon. He also starred in The Moon, Kingmaker, and The Book of Fish.

The character of No Ja has been described as:

“A loan shark who also runs a private detective agency and will do anything for money. No Ja has been tracking Moon Jae since he disappeared after borrowing money, and when he willingly shows up three years later, Moon Jae asks for his help in uncovering the identity of the “Rat.” Drawn in by the chance to recover his money, No Ja becomes entangled in the case.”

Picture: Sul Kyung Gu (left) and as Cha Min Gyu in Kill Bok Soon (right) – Netflix

What is the production status of Mousetrap?

Filming Mousetrap took place between mid-April 2025 and November 2025.

Are you looking forward to watching The Rat (WT) on Netflix? Let us know in the comments below!