A HAUNTING IN VENICE is the story of a renowned detective solving an unusual case. The year is 1947. Hercule Poirot (Kenneth Branagh) is living a retired life in Venice. Many people ask him to solve cases, involving their dead family members or close loved ones, but he refuses them all. This is when Ariadne Oliver (Tina Fey), an old friend and an author, approaches him on the day of Halloween. She asks him to meet Joyce Reynolds (Michelle Yeoh), who claims to talk to the dead. Ariadne himself doesn’t believe in it but she said that after meeting Joyce, she is not able to understand whether she’s bluffing or does she actually have powers. Hercule reluctantly agrees. The meeting is held in a spooky mansion where Joyce is all set to conduct a séance. The idea is to communicate with Alicia (Rowan Robinson), a young girl who mysteriously died. Many believe that the house is haunted by the evil spirits of orphans who were left to die here during the Plague. Hercule is confident that there are no ghosts in the mansion or anywhere else in the world. However, the mysterious developments that take place make him challenge his beliefs. What happens next forms the rest of the film.