When London gangster “Pearly” Gates (Peter Sellers) discovers he has been swindled by a group of criminals impersonating police officers, he teams up with a detective to entrap them. Throw in a rival gang, a double-crossing girlfriend and much identity confusion, and you have a delightfully absurd comedy. Look out for a young, uncredited Michael Caine, just a year before he starred in Zulu, the film that made him a global star.