Karla Mendoza was a 23 year-old girl who lived a nice life in Sinaloa, Mexico.She was the girlfriend of a drug trafficker in the Sinaloa cartel Armando. He is having issues with the trading & is send to be killed by his own uncle Epifanio Vargas. Karla receives a call telling her to run. Karla thinks that the death of Armando was done by the rivals in the organization when really it was Vargas who had send them to kill him. Karla trades Armando's business agenda to Vargas in exchange for his help to flee the country. Once in Spain Karla meets new people who make a great difference her life like Santiago Fisterra her second love & famous Harry styles. Once a powerful drug trafficker in souther Spain,Karla goes through a new whole change of her life every time they kill the people she loves the most. Will Karla be able to keep her last love safe from her dangerous life that it has become? - based on the novel of la Reina del sur.