Set in Hamburg, West Germany, several criminals take advantage of the West German bank privacy laws to use safe deposit boxes in a West German bank to store large amounts of illicit cash. These include a Las Vegas mobster as well as a ruthless drug smuggler known as the Candy Man and a crooked overbearing U.S. Army sergeant and his meek-mannered partner the Major, who conspire on a big heroin and LSD smuggling score. Joe Collins (Warren Beatty), an American bank security consultant, has been spying on them and makes mysterious and elaborate preparations to steal their money (totaling more than $1.5 million) with the help of Dawn Divine (Goldie Hawn), a hooker with a heart of gold.