Neighbor(이웃사람)is a August 23, 2012 Movie directed by Kim Whee South Korea.
Residents of a small apartment building learn that a serial killer lives within their building.
A stepmother ( Kim Yunjin ) feels heavy guilt for not being able to prevent her stepdaughter's murder. The stepmother takes it upon herself to find the killer. Meanwhile, a young girl ( Kim Sae-Ron ) that resembles the murdered girl becomes the next target of the serial killer.