Prosecutor De Negri is investigating a rare double homicide: the alleged murderer, Sáenz, a corrupt police officer, and Julio Vander, the husband of whom the victim was originally, have been found murdered. Vander’s wife, Ana, has disappeared. There is only one witness, Jhony, the manager of the Backgammon bar, who claims to have witnessed a meeting between Vander and Sáenz.

But what went wrong with the assassination plot?