A grisly murder on a baseball field reveals a crime with a ball inside the corpse of Humberto Leon, a coach known for his toughness. This murder is reminiscent of the methods of Salvador Nava, a killer imprisoned years earlier. The detectives discover that Humberto was part of a youth baseball league marred by abuse. As the investigation progresses, the figure of Raul, a dentist with a traumatic past, emerges and appears to be linked to other crimes. The investigation leads the detectives to uncover a sadistic plan, but the denouement leaves more questions than answers about revenge and suffering.
