Yiya Murano poisoned her friends to cover up scams in 1970s Argentina and became a dark figure in popular culture. Freed in the 1990s, she reappeared as a pop icon. Today, her son Martín seeks to reveal her true face.

Sofía, a former Olympic runner, agrees to work as a drug mule for a cartel to pay for her leg surgery. After being ambushed by corrupt police officers, she discovers that what she's carrying is something out of this world.