Polyamory for Dummies: Satur and Tina are married, and Berta enters their life as a ‘unicorn.’ In the end, however, Satur is pushed out and Tina and Berta have an affair. Manu is a loser who tries to embark on a relationship with Amanda, who at the same time is involved with Alex, Claudia and Marta and Esteban, with whom they are all co-raising two children. Everyone seem to be living many different lives but all of them will have a lot to learn from each other.