Arthur is a 30-year-old child who will inherit $750 million if he complies with his family's demands and marries the woman of their choosing.
A nutty inventor, his frustrated wife, a philosopher cousin, his much younger fiancée, a randy doctor, and a free-thinking nurse spend a summer weekend in and around a stunning - and possibly magical - country house.
Paul Snider is a narcissistic, small time hustler who fancies himself a ladies man. His life changes when he meets Dorothy Stratten working behind the counter of a Dairy Queen. Under his guidance Dorothy grows to fame as a Playboy Playmate. But when Dorothy begins pursuing an acting career, the jealous Paul finds himself elbowed out of the picture by more famous men.
