The Stooges are detectives who have nearly mastered the game of gin rummy. They are frequently interrupted by a very loudly ringing telephone. Shemp brings in the pickpocket Slick Chick who manages to talk her way out of the station. Shemp joins the Gin Rummy game before the three of them tangle with a very stubborn filing cabinet. After nearly finishing the game, the Stoogespolice chief B. A. Copper has just about had it with their goofing off, and demands that they find the murderer of Slug McGurk within 24 hours. Right from the start, the trio have Chopper, a prisoner who attempts to confess to the crime. Unfortunately, his confession confuses the simple-minded Stooges, who insist he is avoiding the question. Frustrated, the Stooges throw Chopper back in a jail cell. Larry kisses a female officer who promptly slaps him. A pedestrian,, shows up wanting to talk to them, but is thrown out by an angry Moe, and warned to get out and stay out. The next man they bring up is a witness, an organ grinder with a monkey named Antonio Zucchini Salami Gorgonzola dePizza. The witness begins to download his information to the Stooges, but his Italian looks do not match the English cockney accent that comes out of his mouth. When Moe asks him what he was doing at the time of the murder, dePizza flees in terror at the thought of blood. Next, Shemp takes a call regarding a dismissed bootlegging charge, stating "The D.A. says we can't make a case out of 11 bottles". Just when all seems lost Larry returns with Chopper who says he wants to confess to the murder. However, while taking down his confession, the pedestrian shows up again and in fury that Chopper is going to take the credit of the murder, he confess outright that he's the actual killer and pulls out a gun and starts shooting everything in site. The Stooges take cover in their office, as the killer shoots over 60 times without reloading. Everyone is trapped until dePizza's monkey drops several bowling balls on the killer's head, knocking him cold. Shemp who got shot close-up look to be unharmed, only for the bottle of "Old Panther" alcohol he starts drinking to pour out of the holes in his stomach and Moe and Larry decide to take a shower.
