After a failed kidnapping attempt, the sociopathic convict Gunter Vogler wakes up in a clinic with his head bandaged, only to find himself surrounded by law enforcement officers. When the bandages are removed and the police see the criminal's new face, they make him an offer. The investigators want Gunter to work undercover for them and help put all the influential criminals in the city behind bars. Vogler realizes that he has no chance of refusing.