Nicola (Leonardo Treviglio), who despite his name is a male policeman, accidentally spies his wife out shopping and decides to surprise her. Only the surprise is on him, when he spots her smooching with an afternoon lover in a lingerie shop. At home he confronts her, leading to the mother of all domestics: with him being stabbed with an ice pick, and her nearly being drowned in a basin full of washing up. Bleeding, he leaves, and his wife takes a shower, only to be stabbed to death by someone wearing black gloves and brandishing the ice pick she attacked her husband with.
The police, led by Inspector Pierro Terzi (Paolo Malco), reluctantly finger Nicola as the killer of his wife. Seemingly unaware of his his wife`s death, he runs into the arms of his friend, Anna (Valeria D`Obici), a criminal psychologist and lecturer at the nearby college. She persuades him to leave, and then tries to convince Inspector Terzi that Nicola cannot be the murderer. She believes a psychopath is on the loose, and that the killing has all the hallmarks of the murders committed by a serial killer called Franco Tribbo, who supposedly died in a fire at the sanatorium he was being kept in 8 years previously.
O policial Nicola descobre que sua esposa o está traindo e, após séria discussão, os dois acabam brigando e ele acaba saindo de casa. Logo após a saída de Nicola, sua esposa é assassinada cruelmente. Sendo o principal suspeito do assassinato, Nicola é convencido por sua amiga Anna de fugir temporariamente, enquanto ela tenta convencer o inspetor Terzi de que o crime não foi de autoria de Nicola, e sim de um serial killer supostamente morto.
Direção: Lamberto Bava
Roteiro: Lamberto Bava, Dardano Sacchetti
Produção: Lamberto Bava, Massimo Manasse, Marco Grillo Spina
Música original: Claudio Simonetti
Edição: Lamberto Bava
Fotografia: Gianlorenzo Battaglia
Valeria DObici (Anna Berardi)
Leonardo Treviglio (Nicola Levi)
Paolo Malco (Inspetor Pierro Terzi)
Lara Wendel (Carol Terzi)
Lea Martino (Gioia)
Eliana Miglio (Monica)
Dino Conti (Assistente de Terzi)