The composer, named Bruno, travels to Tuscany to work on the score for a horror film directed by a friend. He stays at a luxurious villa, owned by a wealthy aristocrat named Countess Federica, who allows him to use her grand piano to compose his music.
As Bruno settles into his work, he begins to experience strange occurrences, such as seeing a mysterious figure lurking in the shadows and hearing eerie sounds at night. He also becomes romantically involved with a local woman named Julia, who helps him investigate the strange happenings.
As Bruno delves deeper into the mystery, he discovers that the killer is targeting everyone involved in the film production, and the film itself contains a clue to the killer's identity. Fearing for his life, Bruno becomes increasingly paranoid and paranoid.
In the thrilling climax, the killer is revealed, and Bruno must use his musical skills to defend himself and the people he cares about. The ending leaves the audience wondering if Bruno has truly escaped the killer's grasp or if there are still more surprises in store for him.