They're young, sexy, and successful--but their marriage has run out of steam. Well, passion isn't everything--or is it? Guy proposes to Leslie that they try some new marriage vows that put erotic fantasies at the heart of their relationship. To Leslie, it's try something or "never have Guy come home thinking about getting into my panties." When they hear rumors of a secret organization in their small, swanky seaside town on Long Island, they agree to give it a try--and find themselves in a world of passion, pain, and ecstasy that threatens to consume them. Swept along by the "stampede of Id," they see one sexual convention after another fall away in a series of encounters with people they never dreamed would share their lust.