In Reims, a group of women meet every week aboard a strange boat with a dragon head. Sandrine, Rose-Marie, Poups and Fanny don't know each other, but they all have in common that they have been fighting breast cancer. On the advice of their oncologist, Dr. Cuvelier, they will row to prevent recurrence, to rebuild themselves physically and morally, but also to exorcise the fear that lives inside them.

Sarah, in her forties, is on the verge of exhaustion. Her children, ages 9 and 5, take up all her time and her husband is constantly on business trips. After disappearing on the beach for a few minutes, Simon becomes strange. He spends hours in his bathroom and seeks contact with water at the slightest opportunity. Sarah's life will change when her son confesses the truth...