In 1970, at the height of the sexual revolution, Bobbie is determined to lose her virginity on the day of her 17th birthday, but she will lose more than that. When she discovers her mother’s infidelity and acts out furiously, she sets off a chain of confrontations that forces her father and mother to face their own insecurities as accomplished middle-class intellectuals. On each of their birthdays, hopes are dashed, and secrets revealed.