The wealthy Ashby family has been damaged by the death of Mr. and Mrs. Ashby in a plane crash when their three children were very young. The children were left in the care of their Aunt Harriet. The oldest son, Anthony, committed suicide by jumping off a cliff into the sea when he was 15. The second son, Simon, (Reed) is now a cruel, spendthrift alcoholic trying to drive his sister, Eleanor (Scott) insane, so that he can inherit the estate of their deceased parents. He has only three weeks to wait until the lawyers will turn the family money over to him. But a mysterious man (Davion) appears, who throws a monkey wrench into Simon's plans.