After the death of her husband, Elena and her daughter Celia face a new stage in their lives. One night Elena goes to a dinner to which she has been invited leaving Celia alone at home. From that moment on, their lives take an unexpected turn because of the terrible consequences of their actions.

Year 1987. Rubén is a ten-year-old boy who grows up playing tag in the village. He lives with his parents and his grandmother, with whom he spends the afternoons. Rosa tries to keep her grandson as a child and not to be aware of the dramatic situation at home, which is spoken about in a low voice.

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.

Professor Jorge Ollot and Dr. Iris de Miguel have gathered a group of people, carefully chosen, with whom they will be isolated for a week in a secluded house. Their intention? To demonstrate that the paranormal exists, but that it is our own mind that provokes it.

A couple's children bring a magic ball, which allows them to bring snowmen to life, to a Christmas mountain chalet holiday.