An out of work Method actor is hired by a male model, an ecdysiast, and a car salesman who live together to save money. They want the actor to listen to their problems and go see a psychiatrist so they can get counseling for cheap. The psychiatrist is intrigued by the split personalities indicated by the three separate sets of problems presented by the actor, and soon producers are climbing out of the woodwork trying to buy the rights to the film, while the actor is having trouble keeping his act together.
Lt. Col. Glenn Manning is inadvertently exposed to a plutonium bomb blast and although he sustains burns over 90% of his body, he survives. Then he begins to grow, but as he grows he starts losing his mind. By the time he stops he is 50 ft tall, insane and is on the rampage.
Prohibition-era nightclub crooner Joe E. Lewis has his career and nearly his life cut short when his throat is slashed as payback for leaving the employ of Chicago mob boss Georgie Parker. A broken alcoholic, Joe is brought back from the abyss by his faithful piano player, Austin Mack, who helps turn the former singer into a successful stand-up comedian. But Joe's demons plague his romantic life even as he reaches new heights of success.
Gerald Meek and Myrna McAllister go to city hall to apply for a marriage license. Gerald wanders into the Marine Recruiting office by mistake and Sergeant Delaney signs him into the Marine Corps and sends him for a medical examination before Gerald realizes what has happened. He finds himself in uniform and ready to be shipped to boot camp without any delay, other than explain to his intended-bride that Uncle Sam has other plans for him.
Merchant seaman Skitch Kilroy (Jackie Cooper) and "Pappy" Reagan (Jackie Coogan)arrive in Marseilles, eager to resume their combative rivalry for Mimi. But they are ordered by their skipper Muldoon (Ralph Sanford) to remain on board and guard against theft of foodstuffs by a black market gang.