In 1949, composer Roman Strauss is executed for the murder of his wife. In 1990s Los Angeles, a detective comes across a mute amnesiac woman who is somehow linked to the Strauss murder.

Adrián, an aspiring and talented orchestra conductor, receives a video message from his beloved Belén, telling him with tears in her eyes that she is leaving him and that she cannot carry on with him. Shattered by the unexpected news and puzzled by the inexplicable decision, Adrián gets help from the local Police to solve this case of disappearance. Time passes by and still no news of Belén's whereabouts, so life gradually begins to return to its normal pace, when out of the blue, a new woman appears in Adrián's life. With no progress at all in Belén's case and all things possible, no one will be able to see beyond the facts and comprehend the truth that often lies hidden in the most unusual of places...