7x13 - Alfred Hitchcock Presents

Elisa Minden begins to have second thoughts about marrying Sir Humphrey J. Orford. She has these second thoughts because he took her to his wife's grave and talked about torture as a way of purifying those guilty of infidelity. After she is married, Elisa's worst fears come true when she discovers that Humphrey's first wife is not dead. She is really locked in his study and has been kept there for years. She is now insane and cannot call for help because Humphrey had her tongue out for adultery.