Bergman is the dowdy assistant to bachelor dentist Matthau, who thinks he is bicuspids over bipeds in love with Greenwich Village character Hawn (following in the great tradition begun by Carolyn Jones in BACHELOR PARTY). Hawn is being pursued by Lenz, a writer who is much closer to her in
age. Matthau asks Bergman to pose as his wife so Hawn won't press for marriage. Bergman sheds her caterpillar skin and emerges a butterfly to snare Matthau. Matthau gets his pal Jack Weston to act as "wife" Bergman's lover. They all meet at a nightclub where Matthau finally begins to appreciate
the sexiness of his assistant. Matthau and Bergman wind up in each other's arms at fad...