“I've kidnapped my sister today.”
Watch Sister for Free in 123Movies
Sister (2026) – Official Trailer, Cast & Details
Sister at a Glance
Sister is a 2026 crime and thriller film helmed by Jin Sung-moon, with a cast led by Jung Zi-so, Lee Soo-hyuk and Cha Joo-young. It runs 1 hour 27 minutes and was released on January 28, 2026. Sister is rated 5.8/10 by TMDB users across 9 votes.
Official Trailer Coming Soon
An official trailer for “Sister” has not been indexed yet from verified studio channels.
Search Clips on YouTubeStoryline & 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.
Where “Sister” Fits in the 123Movies Catalog
Frequently Asked Questions About Sister
When was Sister released?
Sister was released on January 28, 2026.
What is the runtime of Sister?
Sister has a runtime of 1 hour 27 minutes (87 minutes).
Who stars in Sister?
Sister stars Jung Zi-so as Seong Hae-ran, Lee Soo-hyuk as Jung Tae-soo, Cha Joo-young as Park So-jin and Jung Ji-woo as Radio DJ.
Who directed Sister?
Sister was directed by Jin Sung-moon. The screenplay is credited to Jin Sung-moon.
What genre is Sister?
Sister is listed on TMDB as a mix of crime and thriller.
What is the TMDB score of Sister?
On TMDB it has an average user score of 5.8/10 from 9 votes.
What movies are similar to Sister?
Movies TMDB recommends alongside Sister include Batman: Assault on Arkham (2014), Batman and Harley Quinn (2017), The Seven-Ups (1973), LaRoy, Texas (2024) and Riot in Cell Block 11 (1954).
Can I stream the full movie of Sister on 123Movies?
No. 123Movies only shows official trailers and title information. Full movies are not hosted or linked on this site.
Batman: Assault on Arkham
Batman and Harley Quinn
The Seven-Ups
LaRoy, Texas
Riot in Cell Block 11
Killer Bean Forever
The Man Who Cheated Himself
The Flash
Psych 3: This Is Gus
How to Rob a Bank
Fear Is the Key
