In a picturesque coastal village in Italy, a young boy named Luca lives a quiet and routine life in the depths of the sea. However, his curiosity about the human world drives him to challenge the rules that keep him away from the surface. One day, when he meets a mysterious friend named Alberto, Luca discovers that they can transform into humans by coming out of the water. Together, they decide to venture onto land and experience the life that fascinates them so much.
As the two friends explore the village, they dive into a world of unknown flavors, sounds, and emotions. They form bonds with a local girl named Giulia, who introduces them to the fun and camaraderie of life above the surface. However, their joy is threatened by a dark secret: both Luca and Alberto are actually sea monsters, and the prejudiced gaze of the village inhabitants towards them could endanger their newfound friendship.
As the trio faces the competition of a cooking contest, Luca must find his own path and decide what he truly wants. Set against a backdrop of laughter, adventure, and deep emotions, Luca's journey through acceptance and friendship resonates with everyone, reminding us that embracing our true identity is the most valuable thing of all.