Malasaña neighborhood, Madrid, Spain, 1976. While political turmoil ravages the streets all over the country, the Olmedo family arrives in the big city and settles into their new apartment. They soon discover that they are not the only ones roaming its corridors.

Javier comes from the future to recover María's lost love. Together, they relive the magic of the day they met and repeat the journey they made from a sunrise in Madrid to a sunset on the Andalusian coast. Everything to get María to be the full of life girl he once fell in love with.

Madrid, Spain, March 2020. As the merciless disease that plagues the world spreads through the increasingly deserted streets of the city, people barricades themselves in their homes and move on with their lives…

Hildegart is conceived and educated by her mother Aurora to be the woman of the future, to become one of the most brilliant minds of Spain in the 1930s and one of the European references on female sexuality.