Alvin Purple, a man who can't hold down a job because of his voracious sexual appetite, impersonates a dead American Gangster.
A sleazy private detective named Horatio Plugg is hired to keep watch over a brothel. Inspector Closer is onto him though.
A tongue-in-cheek sex education documentary covering a different subject for each letter of the alphabet, e.g. A is for Anatomy, B is for Babies, etc.
