Santos Trinidad (José Coronado) is a dirty cop with a violent streak and a serious thirst for alcohol. During a drunken binge, he murders three people in a bar. A witness escapes from the building before Santos can catch him. While Santos sets out to kill the witness and cover up his crimes, a judge and the police conduct an investigation into the murders. Santos’ hunt for the witness and the parallel police investigation slowly converge to reveal a massive criminal conspiracy that no one involved could have ever anticipated.