Ton (2021)

Helena and her teenage son, Janek, participate in an expedition in search of mermaid music. Their lonely boat is anchored by the wild shore. Helena clumsily tries to combine work with the role of a mother. Her overzealous care drives away her maturing son, who, despite his warnings, becomes more and more fascinated by the water. When the boy slips out of his mother's watchful eye at dawn, hairless, naked creatures emerge from the water, mesmerizing with music and sensuality.