Universal's old Show Boat sets are brought out of mothballs for the energetic "B" entry Gambling Ship. When honest gambler Steve Riley (Selmer Jackson) is murdered by his rivals, his pretty daughter Mollie (Helen Mack) takes over the operation of Riley's floating gambling casino. On board this trip is special investigator Larry Mitchell (Robert Wilcox), who like Mollie is anxious to learn the identity of Riley's killers. Since Mollie suspects Larry of being one of the bad guys himself, it takes 6 full reels before the inevitable romantic clinch. Ed Brophy goes through his patented "If I had any hair I'd tear it out!" routines as a lovable crook named Innocent. ~ Hal Erickson, Rovi