Mermaid in Paris (2020)

Gaspard, a man who has gone through breakups, believes he has no more love to give. One day, he crosses paths with an injured mermaid, Lula, by the Seine in Paris and takes her home to heal in his bathtub, but learns that any man who falls in love with her dies. Initially immune to her endearing charm, Gaspard slowly falls in love with Lula, who also truly falls for him.