A terrible tragedy puts an end to a group of friends' pleasure voyage. Maria hears a gunshot, and finds her friend Patricia dead, and, within her confusion, she picks up the gun. Maria is found guilty of murder and is sentenced to life in jail. Her husband, Esteban, an important business man, doesn't believe in her innocence. When he goes back to Mexico, he divorces her, buys the silence of everyone whom was with them on the trip, and tells his sons that their mother died in an accident. Twenty years later, Maria is put in liberty due to good conduct and goes back to Mexico in search of vengeance. She is decided to find out the real killer and upfront Esteban, whom she now hates because he abandoned her at her own risk. But what she most wishes is to have her son and daughter, Hector and Estrella, back. The first thing that Maria does when she arrives is that she cites everyone who was with her on the trip: Esteban; Servando, one of his associates; Demetrio, the company's lawyer;...