Teresa Betancourt and Joaquín Acevedo will experience the worst tragedy of their lives: the kidnapping of their son Mateo. From that moment, the intentions of their entire family group will be revealed. Because in the game of a sinister mind... anyone can be the culprit.
In Santiago, Chile, the schoolteacher Luisa proposes a debate about sex with the parents of her students with the intention of giving classes about sex education to the youngsters.
Rodrigo returns to Chile after escaping from the country for unknown reasons. While in Santiago, the appearance of a serial killer turns the police and the wealthiest circle of the capital upside down ... Who is behind these crimes?