Due to his fatal illness, pedophile child killer Maik F. is released from prison early after 13 years in prison. But instead of enjoying his last days, he longed for terrible revenge on the family that was responsible for his arrest.

Lock the Doors

A masked man in a suit gains access to an apartment; secretly, systematically and silently kills everyone present in a bestial way. Unnoticed, he leaves the scene. On a weekend trip some time later, Samantha and her friends realize that this incident was probably not the only one, because the culprit has left a trail of horror. Without further ado, they decide to do some research on the matter themselves, without realizing what they are going to do for a chain reaction.