Actress Mackenzie Phillips and her father, John Phillips of the Mamas and the Papas, carried on a lengthy incestuous relationship, she says in a new tell-all memoir. She says she and her father had sex the night before her 1979 marriage.
"On the eve of my wedding, my father showed up, determined to stop it," writes Phillips of the episode, when she was 19 and she and her father were both heavy drug users. She passed out on his bed; their sexual relationship later became consensual.
Phillips is best known for her role as Julie Cooper in the sitcom 'One Day at a Time.' During her tenure on the show, she battled drug addiction and was fired in 1980 for drug abuse. Eventually, she and her father entered rehab together.