"Into the Mirror" is one of the most chilling Korean horror films you'll come across. It centres around a former policeman named Woo Young-Min who quits his job after inadvertently causing the death of his partner during a hostage situation. As a result, he begins working for his uncle as the head of security of a shopping mall. However, things take a turn when a number of the mall's employees are found dead. The police suspect a serial killer could be on the loose, but Young-Min does his own investigation and discovers the deaths may actually be linked to a parallel word inside mirrors.