As an unforgettable storm lashes the Breton town of Perros-Guirec, a ten-year-old boy goes missing.

Guillaume is getting ready to meet his wife in the maternity ward where she has just given birth. But an unexpected phone call plunges him back into bitter childhood memories: his father, whom he has not seen for years, wants nothing more than to see his daughter-in-law and the newborn child.

Zao is a little boy with an incurable disease, in a house beside a lake. A little girl, Cloe, leads through the forest and tells him the legend of the lake monster. Beyond the pain, death and time, The Autumn of Zao is a hymn to dream, life and childhood. (Screamfest)