Tells the story of the most prominent bank robber in the history of Mexico, his crimes, his different personalities, his career as a charro with a mariachi band, his getaways and the strange relationship he had with the one who finally came to stop him. Based on the true story of Alfredo Ríos Galeana.

In 1971, four women defy ultraconservative norms and join Mexico's first female police force—only to discover that it's a publicity stunt to distract the media from a serial killer. As the body count grows, they make a pact to bring the killer to justice.