Joana and Nina, two 13-year-old girls, live in Barcelona trapped in the contradictions of female puberty in the first world. The first one, bubbly and brazen, has vital questions about female gender. Both are women of their time and culture: social networks, immediacy and excesses. Today, Joana has decided to put an end to her existential angst, devising a game in which she will involve her friend Nina. That decisive moment of puberty will change something in each of them forever.