Sister(2026)
시스터
I've kidnapped my sister today.
Sister Synopsis
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 (2026) is a crime and thriller film directed by Jin Sung-moon, released on January 28, 2026 with a runtime of 1h 27m. It stars Jung Zi-so, Lee Soo-hyuk, Cha Joo-young and Jung Ji-woo. Viewers rate it 5.8 out of 10 across 9 ratings.
- Director:
- Jin Sung-moon
- Writers:
- J Blakeson, Jin Sung-moon
- Producers:
- Choung Yi-jun
- Cinematographer:
- Byun Bong-sun
- Composer:
- Chae Min-ju
- Production:
- Wind Up Film, LOA & CO HOLDINGS, Blossom Pictures
- Status:
- Released
Sister Cast & Crew
Main cast
Jung Zi-so
as Seong Hae-ran
Lee Soo-hyuk
as Jung Tae-soo
Cha Joo-young
as Park So-jin
Jung Ji-woo
as Radio DJ
Key crew
Directed by Jin Sung-moon, written by J Blakeson and Jin Sung-moon, produced by Choung Yi-jun.
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Sister Reviews & Ratings
Average viewer score of 5.8/10 from 9 ratings.
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Sister – Frequently Asked Questions
Where can I watch Sister online?
+
Sister (2026) is available to stream on Netflix. Streaming availability is checked against JustWatch data and can change by region.
Who stars in Sister?
+
The main cast of Sister (2026) includes Jung Zi-so, Lee Soo-hyuk, Cha Joo-young and Jung Ji-woo. The film was directed by Jin Sung-moon. You can see the full cast and crew list, with character names, further up this page.
When was Sister released?
+
Sister was released on January 28, 2026 and runs for 1h 27m.
Is Sister worth watching?
+
Sister (2026) holds an average rating of 5.8 out of 10 from 9 viewer votes, and is a good pick if you enjoy crime and thriller films. Read the viewer reviews on this page to decide for yourself.