John Haloran has suffered a fatal heart attack. But his wife Louise will not receive her inheritance when Lady Haloran dies if John is dead by that time. Louise writes a letter from John to convince the rest of the family that he has been urgently called back to New York on business. She arrives at his Irish ancestral estate, Castle Heloran, to meet his family and figure out how to get a piece of the inheritance. Six years earlier, John’s sister Kathleen drowned in the pond, and now the Helorans perform a terrible ritual in memory of the deceased…