Lionel Twain invites the world's five greatest detectives to a 'dinner and murder'. Included are a blind butler, a deaf-mute maid, screams, spinning rooms, secret passages, false identities and more plot turns and twists than are decently allowed.

A spoof of the entire 1940s detective genre. San Francisco private detective, Lou Pekinpaugh is accused of murdering his partner at the instigation of his mistress—his partner's wife.

George Schneider is an author whose wife had just died. His brother Leo gives him the number of Jennie Malone, and somehow they hit it off. And just when things are moving along, the memory of his first wife comes between them.

Harry Evers and Marvin Ellison have been playing poker Thursday nights with their friends for years. When a disagreement breaks up the game, they decide to continue meeting and doing different things together, instead of staying home with their wives. When the wives find out that the games stopped some time ago, they are a quite upset....