Madrid, summer of 2010. Commissioner María Ruiz investigates the sinister crime of a young man. With no visible identity and no clues or apparent motive, María will begin an investigation that will become more and more complicated.

A rising politician's career is threatened when a surreptitiously recorded video of her sex life is leaked to the public.

As Helena gains the love and trust of a dangerous heroin cartel leader in 1960s Barcelona, she hones the skills she needs to rise up the ranks.