Movies like the neighbor

The Neighbor (Korean: 이웃사람; RR: Iussaram; also known as My Neighbor) is a 2012 South Korean suspense thriller starring Kim Yunjin in the lead role.

Residents of a small apartment building learn that a serial killer lives there. Kyung-hee feels heavy guilt for not being able to prevent her stepdaughter’s murder, so she takes it upon herself to find the killer. Meanwhile, a young girl that resembles the murdered girl becomes the next target of the serial killer.

Based on Kang Full's eponymous webtoon, the film sold over 2.43 million tickets, becoming the highest grossing film among the movie adaptations of Kang Full’s works.

What would you do if you found out someone living in your building is a serial killer? A man, whose identity is known, kills his own neighbors ― including a middle-school girl ― living in his building, and continues to stay there even after committing the grisly murders.