Emma and Agathe Delorme are sisters. They grew up against each other, yet are very different. Agathe, the youngest, messy and ardent, has always taken up all the space in the bath, in the bedroom and in Emma's heart. After five years of unexplained silence, Emma arranges to meet Agathe at their childhood vacation home. Mima, their beloved grandmother, is no more. We must empty the premises and sort through the memories. The Delorme sisters have a week to tell each other everything and make up for the lack of each other. Will they be able to fix the past? In the beauty of this summer by the ocean resonates the strength of their history.