Octavio and Adela were born on the same day, April 14th, 1931. During the following 8 decades, their lives will intertwine through intense encounters and misunderstandings in 8 episodes. A passionate love story between a brave and fighting woman and a man confronted with his contradictions. They will have to face coming from families on opposing sides of a country slowly heading towards a Civil War, along with the history of Spain and Europe as a background.
During a birthday party, Luca, a sensitive and lonely boy, begins to feel out of place among the other children. As tensions rise, he takes refuge in the fantasy of being a mermaid, imagining a place where he can breathe.
