Murder at the Gallop

Agatha Christie, the grand dame of the mystery novel, weaves a twisting tale of terror that can only be unraveled by gray-haired intrepid amateur sleuth Miss Marple when the wily Marple confronts Murder at the Gallop. Miss Marple (Margaret Rutherford) witnesses an elderly recluse fall down a flight of stairs and die: She believes it's murder, even though the authorities label the death an accident. But the number of suspects dwindles as the body count rises ... and only Miss Marple will be able to reveal a vicious killer.