In a summer full of nostalgia and confessions, Ana, Laura and Javi meet again in town for a memorable vacation. A bottle of wine labeled "summer songs" triggers a surprising experience: every word they utter becomes a summer song. Everyone gets caught up in an enchanting musical madness where hidden feelings are revealed and love entanglements that have lingered for years are resolved.

Life walks in a sunset under a vineyard. Alfonso watches it. Who is the prisoner of whom?