Martin stars in another fairly lame sex comedy that is neither funny nor sexy. He plays an unmarried lawyer who takes it upon himself to save the marriage of his best friend, Wallach, by seducing Wallach's mistress and removing her from the picture. Unfortunately, Martin assumes that
Wallach's secretary, Stevens, is the mistress (he's wrong), and he soon has her devoted to him and housed in a lush apartment. When Martin informs Wallach that he's stolen his mistress, Wallach panics, dumps his real mistress, next-door neighbor Jackson, and tries to save his marriage. Meanwhile,
the confused Stevens and Jackson finally figure out what's going on and demand that Martin...