A professional witness at the marriage registrar helps a runaway girl when her boyfriend does not show up for the wedding. He falls in love with her, but then the missing groom returns.
After young playwright, David Shayne obtains funding for his play from gangster Nick Valenti, Nick's girlfriend Olive miraculously lands the role of a psychiatrist—but not only is she a bimbo who could never pass for a psychiatrist—she's a dreadful actress. David puts up with the leading man who is a compulsive eater, the grand dame who wants her part jazzed up, and Olive's interfering hitman/bodyguard—but, eventually he must decide whether art or life is more important.