A political science teacher is shot and falls into a coma for ten years. After he wakes up, he takes revenge on the person who tried to kill him.

Based on the chilling real events that shocked Mexico. A young man who seems to have everything in life, suddenly loses his mind and plans the murder of his girlfriend and her family. Tragedy and blood envelop Karla's life when one night a hooded man breaks into her home, attacks two small children and then tries to kill her. The truth is hidden behind the sick relationship of Karla and her boyfri...

Based on true events, tells the story of the Granny-Killer who muredered almost 50 old ladies in the 90s.