Miguel Ángel Solá (Mario)Ana Fernández (Paloma)Roberto Enríquez (Álvaro)Ingrid Rubio (Coro)Manuel Manquiña (Ginés)Mercedes Sampietro (Marisa)Héctor Alterio (Salgado)Jordi Dauder (Sánchez)Vicky Peña (Sarah)Gonzalo Uriarte (Megía)María Bouzas (Encarna)Xavier Estévez (Jaime)Luis Tosar (Estévez)Carlos Blanco (Casal)Santi Prego (Chito)Mónica García (Celeste)Xosé Luis Bernal 'Farruco' (Telmo)Mela Casal (Encargada Hemeroteca)
Paloma is a young psychiatrist, who is hired to work as a director of a clinic in Galicia, and is attracted to Mario, her very first patient. He suffers from a rare form of amnesia, commonly known as Korsakov's syndrome. As a result, both his short and long term memories are affected, and he has temporary lapses of perception. However, Paloma finds Mario to be a fascinating individual, not just a regular patient. Intrigued, she decides to explore Mario's past and, through their dialogues, their relationship takes an unexpected turn.