Kyung-min, a timid bank clerk who lives alone in a small apartment in Seoul, becomes convinced that an intruder is breaking into her home when she is not there. As her paranoia escalates, she begins to perceive all the men she meets as potential attackers and, even after enlisting the help of her best friend and the police, can’t explain the strange events that seem to surround her. A remake of Jaume Balagueró’s Sleep Tight, but completely reworked into a tense thriller in the vein of Na Hong-jin’s The Chaser while still honouring the original.