A doctor disbarred for euthanasia is called in by a man to help his son, who has been depressed since the suicide of his partner. But in the dead woman's handbag, an undeveloped film is discovered by the doctor, who decides to investigate the young woman's alleged suicide.

Detective Baldassarre spends his forced exile sorting criminal records. He gets a chance to return to the line of fire when two people, an aristocrat and a worker are struck by lightning inside a fancy mansion. The incident would be relegated to freak accidents, but Baldassare's attention is drawn to the strangeness of the events and he begins to investigate.

When a beautiful biochemist arrives at a foreboding castle to work for a sinister baron, she unlocks a nightmare of dark romance, sexual violence, and grisly family secrets.