“I Kill U” centers on Sun-woo, a former Taekwondo athlete whose life has spiraled into poverty and obscurity. One day, she is recruited to impersonate Han Ji-yeon, a wealthy heiress who bears a striking resemblance to her and has become embroiled in a fatal hit-and-run scandal. As Sun-woo steps into Ji-yeon’s public life, she becomes entangled in family power struggles, conspiracies, and danger—especially from Ji-yeon’s half-brother Ho-joong, who seeks dominance over the family’s assets and resents Ji-yeon’s status. Sun-woo must navigate deception, threats, and moral challenges while trying to survive the perilous life she’s been thrust into. Korea Joongang Daily+3Soompi+3ScreenAnarchy+3


Series / Film Details & Notes

Below is a compilation of what I found; note that some sources treat I Kill U as a film with a later web-series adaptation, not as a traditional TV season.

FieldInformation
TitleI Kill U (also “I Kill You”, Korean: ė•„ė´ í‚Ŧ 뜠) AsianWiki+2ScreenAnarchy+2
Alternative Titlesė•„ė´ í‚Ŧ 뜠, Ai Kil Yu YouTube+2AsianWiki+2
FormatA hybrid: theatrical film + a 6-episode web series / mini-series version ScreenAnarchy+2AsianWiki+2
Episodes6 episodes in the web version; approximate runtime ~30 minutes each YouTube+2ScreenAnarchy+2
DirectorYoo Ha Korea Joongang Daily+3AsianWiki+3ScreenAnarchy+3
WriterWang Hye-ji Letterboxd
ProducersKim Yoon-mi, Kim Yo-hwan Letterboxd
CinematographyKim Jung-wook Letterboxd
EditorKim Woo-hyun Letterboxd
ComposerKoo Ja-wan Letterboxd
Cast (Main)- Kang Ji-young as Sun-woo / Han Ji-yeon (dual roles) Korea Joongang Daily+3Soompi+3ScreenAnarchy+3 
- Lee Gi-kwang as Ho-joong Korea Joongang Daily+2ScreenAnarchy+2 
- Uhm Tae-woong (supporting) IMDb+1 
- Yoo Seung-mok Letterboxd
CountrySouth Korea AsianWiki+2ScreenAnarchy+2
LanguageKorean AsianWiki+1
Release / PremiereTheatrical release: July 23, 2025 Soompi+2AsianWiki+2 
Web-series / festival screening: earlier, at Bucheon International Fantastic Film Festival (BiFan) ScreenAnarchy+2AsianWiki+2
Festivals / AwardsScreened at BiFan; won Best Asian Film from the MÊliès International Festivals Federation Korea Joongang Daily+2ScreenAnarchy+2
GenreAction, Thriller, Drama with suspense & identity / impersonation twist YouTube+3ScreenAnarchy+3AsianWiki+3
Notes / Observations- The theatrical film and the web version may differ in structure / editing. ScreenAnarchy+1 
- Some reviews note the emphasis is heavier on action scenes than deep narrative arcs. ScreenAnarchy 
- The dual role demands much of Kang Ji-young’s performance. ScreenAnarchy+1 
- Lee Gi-kwang makes his feature film debut in this project. Korea Joongang Daily

External links / sources of verification:

  • AsianWiki entry for I Kill You: “I Kill You – AsianWiki” AsianWiki
  • Soompi article on the cast & plot: “Kang Ji Young Battles A Conspiracy As Lee Gikwang Turns Ruthless For Power in New Film ‘I KILL U’” Soompi
  • Review / context from Screen Anarchy (BiFan coverage) ScreenAnarchy
  • Korea JoongAng Daily article confirming Lee Gi-kwang’s debut in the film Korea Joongang Daily

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