After biologist Sylvie discovers her brother Paul trying to steal a gun from her lab, he explains that he wishes to avenge the death of their father whom he suspects died at the hands of his business partner.

A group of 4 girls decide to revise for their exams together, in the summer vacation. They move from Paris to the countryside, where Valerie's grandmother has a vacant house. The film is all about their inter-personal relationships, and how living together effects each of them. Then Valerie's male cousin arrives one day, and we see how they deal with the young man, and vice versa

A young girl is deprived of her baby: her descent into hell begins. Still in high-school, Agnès leaves her alcoholic father, finds a boyfriend and gets pregnant. Giving birth to a baby boy, deprived of him by her her stepmother, left by her boyfriend, she find shelter by junkies friends and subsequently turns to prostitution under the name Sabine only to become HIV-positive. In her diary, the young woman recounts her fight against the disease without ever sinking into despair.