Dementia 13

DementiaUK title The Haunted and the Hunted is a 1963 horrorthriller released by American International Pictures, starring William Campbell, Patrick Magee, and Luana Anders. The film was written and directed by Francis Ford Coppola and produced by Roger Corman. Although Coppola had been involved in at least two nudie films previously, Dementiaserved as his first mainstream legitimate, directorial effort.

One night, while out rowing in the middle of a lake, John Haloran Peter Read and his young wife Louise Luana Anders argue about his rich mothers will. Louise is upset that everything is currently designated to go to charity in the name of a mysterious Kathleen. John tells Louise that, if he dies before his mother Ethne Dunn, Louise will be entitled to none of the inheritance. He promptly drops dead from a massive heart attack. Thinking quickly, the scheming Louise throws his fresh corpse over the side of the boat, where he comes to rest at the bottom of the lake. Her plan is to pretend that he is still alive to ingratiate her way into the will. She types up a letter to Lady Haloran, inviting herself to the familys Irish castle while her husband is away on business.Upon arrival, she immediately notices that things are a little strange in the castle. She observes Johns two brothers, Billy Bart Patton and Richard William Campbell taking part in a bizarre ceremony with their mother as part of a yearly ritualistic tribute to their young sister Kathleen, who died many years before in a freak drowning accident. Lady Haloran still mourns for her and, during the ceremony, she faints dead away as she does every year. As Louise helps her into the house, her motherinlaw tells her that she fainted because one of the flowers she had thrown had died as it touched Kathleens grave. ........

Source: Wikipedia