Elena (Marta Nieto) receives a call from Iván, her six-year-old son, who tells her that he is lost on a beach in France and that he cannot find his father. Those desperate words from her son were the last she heard from him … Ten years later, Elena lives on the same beach where her son disappeared, works as a manager in a restaurant and seems to be starting to emerge from that dark tunnel in which she has been anchored for so long. Her life takes a new turn when she meets Jean (Jules Porier), a French teenager who reminds her of her son. A strong connection emerges between them that will end up sowing chaos and mistrust around them.