

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.
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4.5/10
4 votes
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- Status
- Released
- Budget
- —
- Box office
- —
- Language
- Korean
- based on novel or book
Top billed cast
Behind the camera
Where to watch
Availability for Indonesia. Provided by JustWatch through the TMDB API.
Stream
Catchplay
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Videos
Release dates
South KoreaKR
- Theatrical1517 Dec 2025
Frequently asked questions
Second Sister was released on 17 December 2025.
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