I think Paul Kircher really captures the vulnerability of his "Lucas" character well here. He lives with his parents - Juliet Binoche and Christophe Honoré until an accident robs them of his father. His brother "Quentin" (Vincent Lacoste) returns from his home in Paris and the family start to come to terms with their grief. That manifests itself in many ways amongst the threesome, and causes friction between them too. It's his brother who comes up with the idea of taking the seventeen year old "Lucas" for some time in the big city, and so off they go. He shares his small apartment with "Lilio"...