AllMovie

Best known for his 1978, award-winning La Cage aux Folles, director Edouard Molinaro turns to suspense in this routine psychological drama about a man (Lino Ventura) whose psyche changes into that of a serial killer. The man has been traumatized by the murder of his wife and decides to seek justice himself. So he goes out and kills his wife's assassin (her former lover), but his foul deed is witnessed by a taxi driver. Intent on never being prosecuted for his crime, he then goes after the taxi driver -- and a string of killings is set in motion.