After the death of her father, Clara settles with her husband, her daughter-in-law Mia and her mother in the manor house where she grew up, where her parents had left when she was 7 years old, following a family tragedy. Her parents had deserted the place when she was 7 years old, following a family tragedy. Clara now wishes to start a new life there and to get closer to her mother.
In Brizan, a peaceful seaside resort in the Landes, everything changes with the arrival of a first Wave : a surge of clouds which will cause the disappearance of surfers. The first in a series of phenomena that the inhabitants of this small community will be confronted with, disrupting their intimate lives.
Is there a suitable age to face a loss for the first time? 20-year-old Paloma has just lost her grandfather. Her entire family gathers in the grandparents' house the day before the funeral. It is a place full of memories, and without noticing, Paloma is led to confront her loss, as if this end of summer marks the end of her frivolity.
Juliette is attending the baptism of Lucas, the son of her best friend Claire. But the young mother, weakened by her childbirth, shows disturbing signs of depression.
