Now retired and living in self-imposed exile in the world's most glamorous city, Poirot reluctantly attends a séance at a decaying, haunted palazzo. When one of the guests is murdered, the detective is thrust into a sinister world of shadows and secrets. -- Provided by publisher.

Originally released as a motion picture in 2023. Wide screen (1.85:1) Based on the story "Hallowe'en party" by Agatha Christie.