Lonnie Cabot is a down-on-his-luck nightclub janitor without any friends. That is until he befriends club patron Brian Bekker, a manic depressive who is in love with Sonja, a dancer at the club. Soon, Lonnie's life is flipped upside-down when he finds a box containing a watch and a wad of cash hidden in a toilet. Brian convinces Lonnie to bet the cash on a horse race. What neither of them know is that the box was lined with smuggled diamonds and belongs to Lonnie's boss, who works for the Russian mob and is desperate to find his loot. Meanwhile, local gang leader Jackie Jardine is looking for his son's murderer and he believes Lonnie is the culprit. Surrounded by bad guys who want to hurt them, Lonnie and Brian come up with a harebrained scheme involving a "lucky" fish to pay their debt to the mob and elude the vengeful Jackie. Hilarity ensues!