IMDb 6,4/1020181 h 42 min
Living alone, Kyung Min finds her door lock cover open after work. Alarmed, she changes the password but hears someone trying to unlock it that night. The police dismiss her fears. Days later, more signs of intrusion appear fingerprints, a cigarette butt, and a nearby murder. Realizing she's unsafe and the police won't help, Kyung-Min starts investigating on her own, Someone's watching her.
