Storyline
Desperate to raise money for her younger sister's surgery, Hae-ran teams up with Tae-soo to kidnap her half-sister So-jin. So-jin wakes up confined in an unfamiliar place. Hae-ran and Tae-soo demand a hefty ransom, expecting her wealthy father to cough up the money. Upon discovering that one of her captors is her half-sister, So-jin enters a precarious alliance that blurs the lines between victim and perpetrator as she plots a counterattack against the ruthless Tae-soo.
Key Information
Cast & Crew
Jung Zi-so
Seong Hae-ran
Lee Soo-hyuk
Jung Tae-soo
Cha Joo-young
Park So-jin
Jung Ji-woo
Radio DJ
Frequently Asked Questions
Sister was released on January 28, 2026.
The runtime of Sister is 1h 27m.
Sister is a Crime, Thriller movie.
Sister has a rating of 5.8 out of 10 on TMDB.
Sister is available to watch. Check streaming platforms and theaters near you.
Sister was directed by Jin Sung-moon.
The main cast of Sister includes Jung Zi-so, Lee Soo-hyuk, Cha Joo-young.
Sister is originally in Korean.