AllMovie

This is a crime-comedy-musical romance by director Ken Hughes that has an identity problem. Bert (Anthony Newley) is an electrician who gives the wrong people a "song and dance" about his supposed expertise as a cat burglar and now he has to pay the piper. The gang of young thieves brings him into their plans for a big heist and there is no obvious way Bert can get out of it. Just when things get serious, Bert or someone else then literally breaks into a song and dance routine -- hard to smoothly integrate with the comic sequences and serious moments that have gone before.