Voices from Beyond (1991)

The powerful, wealthy and healthy businessman Giorgio Mainardi suddenly has a mysterious stomach hemorrhage and dies. The doctor demands an autopsy to find the reason of his death. His daughter Rosy Mainardi, who is in the university, returns home for the funeral. During the ceremony, each family member meditates of a motive to hate Giorgio. His wife Lucia Mainardi has had a love affair with his stepbrother and believes Giorgio knows that her son Davide Mainardi is not his son. His stepmother Hilda Mainardi, who married his crippled and mute father, recalls that he had limited her expenses. His stepbrother Mario Mainardi recalls when he refused to indicate him to an executive position in the Mainardi's administration. His lover Rita recalls that he had humiliated her in their last encounter in a restaurant. Out of the blue, Giorgio contacts Rosy from the beyond and asks her to find who might have killed him. When the sample of the autopsy is destroyed, Rosy's boyfriend Gianni tells her that he had a sample in his laboratory and found glass as the cause of the hemorrhage. Now Rosy decides to seek out who killed her father and let him rest in peace.