Mary Hartman, Mary Hartman (1976)

Season 2: Episode 39

Christine suggests Cathy endure a natural childbirth, on all fours and with no anesthesia. Grandpa Larkin attempts to persuade Cathy to return home. Martha and Detective Johnson set-up the Renquists to incriminate themselves on tape, but Jack recognizes the scheme. Mary ruins Tom's adoption celebration with news that Cathy won't give them her baby, so Tom gets Mary drunk and seduces her with the intent of making their own baby.