Mild-mannered Theo is a wealthy German expatriate; hot-tempered Ramón was born into poverty in Mexico City. The two men are unlikely friends - especially as they are in love with the same woman. When Lelia is found brutally murdered, both lovers are suspects - and each suspects the other. But then they discover that a thief was seen at Lelia's apartment, and their hunt leads them on a frantic chase to sun-drenched Acapulco. Theo begins to get the uneasy feeling that his every move is being watched. . . . . . . . . . . . . . . . .