One night, the horror becomes tangible. While lying in bed, she hears the distinct beep of her electronic door lock. Someone is outside, typing in random numbers, trying to guess her passcode. She freezes in terror as the handle rattles violently. When she finally gathers the courage to check the hallway, no one is there. ⚠️ Ignored Pleas

Despite changing the code, the feeling of being watched intensifies. She starts experiencing unexplained fatigue and waking up with mysterious bruises. Desperate for answers, she installs a hidden camera in her apartment. 📹 The Terrifying Discovery

The climax is a claustrophobic game of cat-and-mouse. Kyung-min must use her wits to outsmart the predator who has turned her safest space into a hunting ground.

The discovery plunges Kyung-min into a desperate fight for survival. She realizes that her stalker is someone who has access to the building and knows her schedule intimately. As she tries to uncover his identity, she becomes entangled in a web of previous disappearances and murders in the building.

The movie The Door Lock (2021) is a South Korean thriller that follows a woman named Kyung-min who lives alone in a studio apartment and begins to suspect that a stranger is entering her home [1]. 🚪 The Unseen Intruder