Murder Most Foul is a 1964 comedic crime drama directed by George Pollock. The film is based on the novel Mrs. McGinty's Dead by Agatha Christie. In the film, a young barmaid, Mrs. McGinty, has been found murdered at her place of employment. Townspeople and authorities are distraught over the death and everyone wants to see the murderer caught and punished. A young man, Harris Trumbull (Dennis Price), is assumed by many to be the killer. Miss Jane Marple (Margaret Rutherford) doubts the man's guilt, and takes it upon herself to prove him innocent. Despite the insistence of Inspector Craddock (Charles 'Bud' Tingwell), to stay away from the case, Miss Marple delves in to the murder mystery on her own. Her investigation unravels secrets about Mrs. McGinty, and prove to be instrumental in finding out the murder's identity. Will Miss Marple prove herself right, or will she decide others were right all along?