Alina is a movie sound engineer. One day she receives an offer to do the direct sound for an erotic film featuring Maria Black, a famous star of the genre who had already retired. When Maria has a heart attack and dies in the middle of the shoot, and the producers decide not to call the police, a series of sinister and unexpected events are unleashed that will endanger everyone's lives.

A butterfly, a creature symbolising rebirth and a new beginning, epitomises Romina’s and Germán’s world, a world that consists of two parallel realities. In one of them they grow up as siblings who desire each other and try to give shape to their love without sexual fulfilment; in the other they are a young man and woman who form an awkward friendship instead of succumbing to their feelings for each other. Germán finds himself in a discordant relationship with Mariela. Mariela’s brother is interested in Bruno. Bruno is with Romina, but wants to be with Germán. Playfully alternating between these two realities, the lovers find themselves drawn into ever new couplings in order to explore their intuitive feelings – cautiously, but at the same time prepared to lose everything.

Roberto is a Law professor whose life is thrown into chaos when he becomes convinced that one of his best students has committed a brutal murder. Determined to uncover the truth, he begins a personal investigation…

Unable to land a job as an airline pilot, Leonardo takes a job as a fumigator pilot at a farm in the countryside. On his very first night, he discovers the town harbors a deadly secret that will put everyone in danger.