graphic and inhumane experiments conducted on patients at the hospital. Abel becomes even more fearful and will not even allow Manuela to touch him, and she starts to suffer from extreme mood swings. Abel gets drunk at a local bar, and on his way home, he vandalizes a bakery and gets into a fight with the baker and his wife, but has no recollection of why he did so. He is found in the street by a prostitute who convinces him to have sex with her. They enter the brothel, but it is already occupied by a man who is ranting about another prostitute, with whom Abel has sex. Abel returns home to find Manuela dead on the kitchen floor and the apartment littered with cameras. He flees the scene and soon finds himself in a mysterious, seemingly abandoned industrial building. Eventually he is discovered by an unknown attacker and the two fight in an elevator, which Abel uses to cut off the attacker's head. Abel returns to the hospital and confronts the doctor about the inhumane experiments carried out at the hospital. The doctor claims that all of the subjects of the experiments were volunteers, whom he states "would do anything for a little money and a warm meal." Abel is then shown footage of a man injected with a serum that drove him mad within minutes; the effects of the drug subsided, but the man committed suicide a few days later. It is revealed that Abel's brother Max was an assistant who was interested by the experiments and, against the objections of the doctor, he opted to inject himself with the serum, which later triggered his own suicide. Abel is shown a video in which a man and a woman living in the same apartment that he and Manuela had inhabited are driven into a frenzy by an odorless gas that causes extreme mood swings. He also states that it was not his intention to subject them to any detrimental experiments, as the buildings connected to the apartment had already been vacated. He was sincerely trying to help them and was fond of Manuela. As the police arrive on the scene and attempt to enter the laboratory, the doctor swallows a cyanide capsule and states that Germany is in need of a revolution that ordinary people are too weak to carry out, and that these experiments will benefit