Plot
Abnormal solar activity is believed to have driven the violent escalation of suicides in Rome. In a few examples, a woman cut her wrists in the bathroom, a man dove into a river with a plastic bag around his head, another man died in his car after setting it on fire, and a husband/father killed his family with a machine gun before turning the on himself. In the middle of the hectic work days at the coroner's office is Simona Sena, a resident pathologist who suffers so badly from the stress that she hallucinates the victims coming back to life. She's also sexually harassed regularly by assistant Ivo, as well as dates racing car driver Edgar Riccardo, who degrades and insults her and her job regularly and once solicited Ivo to play a cruel prank on Simona by pretending to be a corpse in the office, despite Simona not dumping him.
Betty Lennox, Simona's father Gianni's latest lover, meets Simona, who doesn't like her. The next morning, Betty is found dead on the beach, shot in her mouth in an apparent suicide. When she arrives at the morgue and is reconstructed by Ivo, after he molests her corpse, Simona recognizes her after placing a red wig on her, which Betty wore when Simona met her. Betty's brother, Catholic priest Father Paul Lennox, arrives to identify his sister in the morgue, revealing he absolve her in confession shortly before she was shot. He insists Betty was murdered and implodes Simona to help him, but she rebuffs him at first.
Edgar recognizes Paul as a former race car driver who went off the tracks in his last race, killing a dozen people in a crash in the stands. Simona later meets Gianni, who tells her he's marrying his steady girlfriend Daniella, a controversial artist who Simona constantly fights with and who wears red wigs like Betty did. Simona goes up to Gianni's apartment above hers for answers, where she narrowly avoids a burglar looking for something, yet the burglar doesn't find what he's after.
Simona confronts Paul about his past, and when he fights her, he has a seizure, then later recovers. Simona finds the building super, who's a voyeur and abusive to his dog, having hanged himself in his bathroom with his dog's leash. Paul tries and fails to resuscitate him. Simona grows closer to Paul in spite of her relationship with Edgar, who wants to go to France with her. Paul reciprocates Simona's affection, but he refuses to give up his faith. Edgar, who refuses to believe Paul's assertions about Betty's murder, has Simona and Paul attend his next race. After Paul leaves, Edgar's car windshield blows out, and he narrowly escapes his car going up in flames.
Gianni receives a suicide note from Betty, in an envelope Simona gave Betty, which is supposed to have an enclosed document, but there's nothing else there. Believing his brother and business partner Lello stole it, Gianni fights Lello. He's later severely paralyzed from a fall out the window, unable to speak and only able to move his eyelids. Paul confides in Simona that Betty played a prank on a man she cared about, which Paul advised her to tell the man about to make amends. Paul fears that advise got Betty killed. In the meantime, Edgar enjoys toying with Simona believing Paul is telling the truth, and as Paul's suspected of the crimes, Edgar insults Simona and even says she likely has some guilt in the attacks due to her declining sanity.
An experiment is conducted on Gianni, as reading his expression in his eye movements with a specialty machine can spell out answers to questions regarding his fall. His answers are incoherent, and with the wrong drug cocktail, Gianni slips into a coma. This gives Simona an idea, and she finds a puncture mark on Betty, confirming she was injected, then murdered. Ivo attacks Simona, forcing his hand up her uniform to aggressively molest her, but she nearly kills him with a fork, only to be stopped by Edgar. When Paul is locked out of his own church and is ordered to pack, he receives Betty's belongings, including an old Bible. He realizes it's a historic document he believes was salvaged from disastrous floods in Rome decades ago, and since Lello deals in antiquities, he confronts Lello, who's near shooting Paul, but regents. Paul assumes Lello stole the scripture to sell illegally with Gianni, making him a suspect.
Edgar, however, reveals the truth to his aunt, who doesn't hear him because she's hard of hearing. Edgar is the killer, having sold his dead father's historic texts after shoving his father down a flight of stairs and killing him. When the Bible contained his father's changed will, removing Edgar's inheritance, Gianni blackmailed Edgar. Betty was hired to seduce Gianni and get the will back, but she wanted to mail the will back in her suicide note after speaking with Paul. Edgar stopped her and drugged her to hear the truth. He sent the note to Gianni and kept the will, shooting Betty as she had planned to do to herself. After Edgar burglarized Gianni's apartment, Gianni shot at Edgar's car in a failed attempt to kill him. Edgar later shoved Gianni out his window to silence him.
Edgar confesses to Simona and Paul, then drugs them in an attempt to stage their shared suicide by carbon monoxide poisoning. Paul runs the water in the bathroom to overflow out the apartment door, which alerts the dead super's dog. Once Simona and Paul are rescued, Paul confronts Edgar at his favorite scaffolding for photography. Edgar tries to kill them both from throwing off, but in spite of Paul saving himself, he fails to pull up Edgar. Edgar loses his grip and plummets to his death in front of Simona, with the nearby public rushing to Edgar's body to check out the scene.
