

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.
Sister was directed by Jin Sung-moon.
Sister holds an average rating of 5.8/10 on TMDB, and it lands best with fans of crime and thriller. Join the discussion below to add your take.
Sister runs for 1h 27min, and was released in 2026.
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