(1977) Joe Lo Monaco is an owner of a vessel which has inside a large casino. A band of evildoers exploits man to have earnings about gambling on roulette, so Lo Monaco really wants to destroy the ship, but he finds out that the boat is assured and that destroying it would lose a lot of money. In London meanwhile the trickster Charleston is arrested for being found with a false identity. However, he manages to escape from prison as soon as he was offered the job of helping Lo Monaco from evildoers...