The psychiatrist Marc Laxroix is a studious scientist of the brains of criminals. He has an unhappy and loveless marriage with his wife Marie Lacroix and they have a boy, Léonard Lacroix. Marc has also a mistress, Marianne, who is also his confidante. Marc has secretly built a machine to study the mind of a person to another one in his old house, but he has not tested it yet, and Marianne is the only person who knows. When the serial-killer Michel Zyto is sentenced to life in the institution where Marc works, he decides to study the mind of the psychopath. Then he brings Zyto to use the machine and their minds are exchanged. When Marc asks Zyto to press a green button to restore their minds, Zyto refuses and uses Marc's body to lock up Marc trapped in his body in the institution. Further, he goes to Marc's house to stay with his family. Will Marc retrieve his body?—Claudio Carvalho, Rio de Janeiro, Brazil

Marc Lacroix is a psychiatrist, a student of the brain, with a rocky marriage, a mistress, and a ten-year-old son. He also has a secret laboratory where he's built a machine he thinks will allow him to penetrate the mind of any person hooked up to the machine with him. He tests it with Zyto, a psychopath who has killed three women. The machine fails and exchanges the men's brains. Zyto passes himself off as Marc, and Marc (now in Zyto's body) escapes from the asylum to the flat of his mistress. She tries to warn Marc's wife, exposing herself to Zyto. All are now in grave danger. Can Lacroix find a way to get Zyto back to the machine before irreversible damage is done?—<[email protected]>