The hero of this black comedy is Wormald, a vacuum-cleaner salesman in pre-revolutionary Cuba, which is beset by power cuts. Milly, his beautiful but materialistic and manipulative daughter spends his money with a skill that amazes him. When a mysterious Englishman offers him an extra income he's tempted. All he has to do is carry out a little espionage and file a few reports. When his fake reports start coming true, things get more complicated and Havana becomes a threatening place.