Four dentists, three men and a woman, meet at a yearly dental convention in Mexico’s Mayan Riviera. While two of them are old friends and rivals, the other two have only gotten to know each other at past conventions.

A lonely man who operates a film projector finds his only solace in a woman he sees on a film reel. After the reel is lost in an accident, he sets out to find the woman through the remotest, poorest places of the Dominican Republic.