Neighbors trailer (Korean Movie, 2012)

Posted for 24FramesPerSecond.net - 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.