The Key to Murder

In Paris, renowned music producer Xavier Sedu is murdered. The skull of the unfortunate man is split open by a battle axe from his own collection of medieval weapons, and an antique key is clenched in the corpse's fist. At... the crime scene, the police find Angelo Bertolini — a rock singer whom Sedu made famous across France. Angelo becomes the only suspect. However, there are no fingerprints on the weapon, and during the interrogation, he admits that he does not remember the moment of the murder and only recognizes the key, claiming that it belongs to him. The investigator's intuition suggests that the beloved singer with the angelic voice is innocent. To find the necessary evidence and uncover the mystery of the old key, the policeman travels to Bertolini's homeland. There, in a small Italian town, ugly secrets of the rock star, which the producer had carefully hidden from the public for many years, suddenly emerge…