Diagonale

Isabelle is a young woman suffering from cystic fibrosis, a genetic and degenerative disease that drastically reduces her life expectancy. At the age of 19, she tries to leave her family environment, which she shares with her mother and sister, to become independent through a solitary trip to Asia. But her family is not ready to let Isabelle take such risks…

Louise and Sam are neighbours. They spend their summer holidays playing together in the forest to build their dream tree house. But from one day to the next, without any apparent explanation, Sam loses interest in Louise. He continues to come to her house but to play with his older brother. Rejected, Louise is going to look for her place in other ways.