Vicki Vale gets an exclusive interview with the mysterious Mister Roulette, a masked figure who says he had been a successful former gambler. Retiring on his winnings, he now wards off boredom by gambling with his life. His house is rigged with booby traps, so that, for example, when the phone rings, he must choose between two phones, one of which is a concealed gun. Batman investigates, but Roulette is furious that anyone would try to keep him from gambling as he sees fit, so he temporarily imprisons Batman. While Batman escapes, there is a shot, and he finds Roulette finally dead. Batman unmasks him as Charley Denver, a former gangster, but small clues lead Batman to realize the body is not the Mr. Roulette who trapped him. Eventually, it's shown another gangster, Rigger Sims, arranged the scheme in order to kill his rival and have Batman confirm the death a result of one of the booby traps.