Hotel detective Falk McCoy has an opportunity to earn some extra cash. A local diamond dealer hires him to follow his business partner around Miami, wants to know what the man does in his spare time. The gem dealer thinks his partner is adding money from an unknown source to the jewelry store's cash register. The job seems simple enough, until some bad guys show up to change Falk's mind. In a romp through Miami, the Caribbean and South America, Falk McCoy finds there's money, money everywhere and plenty of hot diamonds to be had - if the money well doesn't run dry.