Movie

Second Sister

Name: Second Sister
Genre: Thriller, Crime
Released: 2025-12-17
Cast: Kim Min-gue, Kang Seo-ha, Seong Hee-hyeon, Park Dong-hyeok

망내인: 얼굴 없는 살인자들

“Find the murderer hiding in the network”

2025EndedSouth Korea90 min

Thriller Crime based on a novel or book

What's it about?

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 …

Where to stream?

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Availability data partly provided by JustWatch via TMDB.

Trailers & videos

Second Sister | tvN Movies — Trailer · English · official · YouTube

Cast

4 people — scroll sideways

Crew

Director

Shin Jai-ho

Music

Yoo Sang-hoon, Hong Seong-jun

Writer

Shin Jai-ho, Chan Ho-kei

Producer

Ji Sang-chul, Kim Hoon Gwang, Lee Hyun-joo

Image gallery

Posters (5)

Stills (2)