Ten-year-old Nicolas (Max Brebant) lives with his mother (Julie-Marie Parmentier) on a remote island, in a village inhabited solely by women and young boys.
In a hospital overlooking the ocean, all the boys are subjected to a mysterious medical treatment. Only Nicolas questions what is happening around him.
He senses that his mother is lying to him, and is determined to find out what she does with the other women at night, on the beach…
What he discovers is the beginning of a nightmare into which he is helplessly drawn. But in Stella (Roxane Duran), a young nurse at the hospital, Nicolas finds an unexpected ally.
Lucile Hadzihalilovic’s Évolution is a journey into a mysterious world of childhood dreams, fantasies and fears.
‘To watch Hadzihalilovic's films is to be reminded that life itself is a deeply perplexing mystery – that we're all born into rigidly stratified societies, laden with inexplicable rules and run by people whose minds we can't access’ – AV Club