"A Haunting in Venice" is a supernatural thriller based on Agatha Christie's "Hallowe'en Party" and directed by Kenneth Branagh. The film stars a talented cast and is set in post-World War II Venice on All Hallows' Eve. The story follows Hercule Poirot, a retired detective, who attends a haunted palazzo and is forced into a sinister world of shadows and secrets after a guest's murder.