Leo (Pierre Mignard), is the eldest of four brothers. Marcel (Yannis Lespert), age 10, is the youngest. With their young parents, they are a happy and close-knit family. One evening, Marcel overhears his family discussing the news that Leo is HIV-positive. They all agree to protect Marcel from the news, even though Leo wants to tell his little brother, not only that he has HIV, but that he is gay.