Agata receives a visit from Florence, an old woman who wants to contact her dead husband to prove to her son that his ghost exists and that their house cannot be sold. Terrified by her encounter with the ghost, Agata decides to help the old woman with the help of her daughter Milla and a listless Ulisse, who will not believe in the ghost's existence until the very end.

A man and his stepson driving across Europe are terrorized by a man following them in a pickup truck.

1977 film by Damiano Damiani

A grieving woman, haunted by the loss of her husband on their wedding day, suddenly finds herself slipping between two realities—one where she remains a widow and another where he is alive with their son. As she struggles to distinguish truth from illusion, she becomes entangled in love, betrayal, and mystery, questioning her sanity while searching for answers in a world that keeps shifting.

1983 film by Sergio Corbucci

1970 film by Alberto Lattuada