A young French woman unexpectedly dies in Berlin, where she lives with her boyfriend. Her passing ruins the lives of her partner, and a long recovery begins.
Sasha, 30 years old, passes away suddenly in the middle of summer. Her partner, Lawrence, is taken over by grief. In search of relief, he confides in Zoé, Sasha's sister. Getting close, the share memories of the one they used to love. Three summers in three cities pass as the pain gradually subsides.