The death of Mrs. Westaway

Harriet "Hal" Westaway receives a mysterious letter bequeathing her an inheritance from a grandmother who has been dead for decades. She thinks it's a mistake, but maybe her tarot card-reading skills could help her get the funds anyway so she travels to Trepassen, an English countryside estate, where Mrs. Westaway's family has come to claim their bequest. Hal quickly realizes that there is something very wrong about the situation and the inheritance, and she could be in real danger.