What is I Kill U about?

Sun Woo comes from a poor family background. She was once a promising Taekwondo athlete, but she now works part-time jobs to support herself. One day, she is is selected to become the stand-in for Ji Yeon due to their similar appearance. Ji Yeon is the granddaughter of Beomhan Construction Company's chairman. She was the driver of a fatal hit-and-run car accident. Sun Woo must play Ji Yeon in front of the public and media. Meanwhile, Sun Woo becomes the target of Ho Joong’s hostility. Ho Joong is Ji Yeon’s stepbrother and he has an inferiority complex over Ji Yeon. He wants to become the successor to Beomhan Construction Company.

Latest episode

S1 · Episode 6 — Game of Truth · 2025-08-22

At a secluded villa, Sun-woo comes face to face with Ji-yeon, who points a gun at her. Seizing a brief opening, Sun-woo overpowers Ji-yeon and ties her up tightly in the room. Determined to turn the tables, she begins to devise a plan to use Ji-yeon’s own scheme against her.

Genres: Mystery
First aired: 2025-08-22
Rating: ★ 8.7 / 10

Top cast

Kang Ji-young Kang Sun-woo / Han Ji-yeon
Lee Gi-kwang Han Ho-joong
Uhm Tae-woong Yoon Suk-hyun
Yoo Seung-mok Han Beom-su
Lee So-jin Na Hee-soo
An Min-young Kang Sun-woo's Mother

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