Lara returns from Paris with her partner, ready to settle in Donostia. Daniel has never left the city; He lives with his girlfriend and works for his mother's real estate company. Lara and Daniel's paths meet when visiting an apartment for sale, but this may not be the first time their lives have crossed. Between the past and the present, the story explores the love relationship of two people whose lives, in other circumstances, in other times, could have taken other paths.

Diana is an AI specialist who travels to her old summer lake house to reunite with Martin, her ex-husband whom she has not seen for twelve years. The initial harmony is shattered when they are joined by Andrea, a young man with a mysterious resemblance to the couple's defunct son. Diana begins to suspect that the enigmatic young man is actually part of a greater plan.

When the husband who abandoned her eight years ago reappears in her life in a catatonic state after suffering a stroke, Elena will have to reunite her family to face the new situation. But her children Paúl (an aspiring writer) and Lucía (a psychologist unable to deal with the emotional burden of her own life) are perhaps not the most suitable people to help her embark on her new life stage of self-discovery.