The experiment

It wasn't murder... It wasn't rape... It wasn't torture...

Three women disappear without a trace. One week is enough for the psychopath, also known as the Psycho Breaker, to destroy them. No one knows the method he uses, but by the seventh day they will be psychologically dead, buried alive in their own bodies. Only one thing is known: the bizarre riddles he leaves behind for each of his victims.

Just before Christmas Eve, the Psycho-Breaker strikes again. In a luxurious psychiatric clinic outside Berlin, snow falls heavily, making the place even more inaccessible and isolated. Doctors and patients realize with horror that the maniac who has long terrorized the city is among them.

Trapped inside the clinic, their only way out is to unite to protect each other. But on a night of unspeakable terror like this, he will prove to them that there is no escape...

It was something much worse.