Traveling on a ferry heading to the island of Hierro where they will spend their holidays, Mary loses her son Diego, and no one can explain what happened. Six months later, Maria struggles to overcome the pain of loss and continue his life. Then, you receive an unexpected phone call: they found the body of a child, so it must return to the island. There, in the suggestive and disturbing landscape, surrounded by disturbing and sinister characters, Mary is forced to confront their worst nightmares. And as he travels this road, he discovers that some mysteries should not be disclosed ...

Two young brothers have their first contact with death.

Ten-year-old Nico receives a threatening letter and now his life is in danger. No one seems to believe him except one person that he doesn't know.

Little Pol's fears will become genuine terror as he discovers the cruel intentions of the oldster who lives in the bathroom.

Raquel's longtime crush on her next-door neighbor turns into something more when he starts developing feelings for her, despite his family's objections.

Each house locked away the secret of a family. For one hour a day Sergio, helped by his grandmother, carry out his desires in a home dominated by his grandfather. A twist will force Elena, his mother, to make a decision that will change their lives.

After a year of long-distance, Raquel and Ares reunite on a steamy beach trip. Faced with fresh flirtations and insecurities, will their love prevail?

After the events of the summer, Ares and Raquel they don't see a way forward in their relationship and decide to go separate ways. But when they meet again in the winter in Barcelona, the love and desire they feel for each other is undeniable. Will they be able to find a way to get back together?