Dead Man's Folly is a 1986 British-American television film featuring Agatha Christie's Belgian detective Hercule Poirot. It is based on Christie's novel Dead Man's Folly. The film was directed by Clive Donner and starred Peter Ustinov as Poirot. The cast included Jean Stapleton, Jonathan Cecil, Constance Cummings and Nicollette Sheridan. It was shot largely on location at West Wycombe Park in Buckinghamshire, England.