Second Sister
“Find the murderer hiding in the network”
High school student 'Ji-eun' was the victim of the crime, but distorted online posts and malicious comments made her into the perpetrator in the public eye, driving her to take her own life. Her sister 'So-eun' finds detective 'Jun-kyung' to uncover the truth behind her sister's unfair death, and he begins hunting down a suspect in cyberspace. As clues are revealed one by one, the case grows from a simple rumor into a complex web of truth involving anonymous accounts.
Where to watch
Not streaming anywhere
Not on any streaming service in United States, and not available to rent.
Your rating
Your review
Cast
4 people
Shin Jai-ho Director · Chan Ho-kei Author Yoo Sang-hoon Composer
First release December 17, 2025 · Produced in South Korea · Production Big Ocean ENM, 스튜디오 아발리
Production
Studio Joyful
Production
Big Ocean ENM
Production
스튜디오 아발리
Production
New Branch Contentory
Production
South Korea
Produced in
Languages
Original title
망내인: 얼굴 없는 살인자들
Original language
Korean
Spoken on screen
Korean
Release dates
South Korea · December 17, 2025
Theatrical
No release date listed for United States.
More from Shin Jai-ho
Other films they directed, best known first.
If you liked Second Sister
Picks that share its genres, themes, cast and crew.