Clémence has been severely injured in a car accident, leaving her unable to talk and walk normally. When her sister Romane's boyfriend takes an interest in her recovery, their relationship becomes unbearable for Romane.

Romane has been living together with her sister Clémence since their mother died in a car accident when they were teenagers. While Romane was not hurt, Clémence was severely injured, leaving her unable to talk and walk normally. One night, while Clémence is asleep, Romane decides to go out. She comes home late with Guillaume, her new boyfriend. As the days go by, Guillaume becomes more committed to making Clémence recover her speech and use her legs again. However, the newly formed relationship between Clémence and Guillaume becomes even more unbearable for Romane.—Jerry