2021: Venice has been swallowed by the waters of a final Acqua alta. Guido Malegatti, one of the survivors, navigates through the ruins by boat, searching for his wife and daughter. Two years earlier: In the face of the impending rise in sea levels, conflict brews within the family. Guido, as an economic advisor, swears by tourism and the blessings of technology. His wife Maria Alba revels in the past splendor of a city on the brink of collapse. And their 17-year-old daughter Léa becomes her father's opponent in the attempt to save the beloved city. Isabelle Autissier crafts a scenario that is both dramatic and realistic regarding the downfall of Venice. She compellingly portrays the perspective of three family members as they navigate the catastrophe, posing the question to all of us: How would I behave?.