Quelques jours entre nous 2003 on netflix

Three siblings lose both their parents after a terrible accident, after which their lives are forever changed. Vincent, the middle child, has to assume a lot of responsibility, not the least of which is his younger sister Alice. He must also give up his architecture course in order to work for his uncle’s construction firm. The two adjust, and their life goes pretty well before it is again turned upside down when their older brother Thomas, who had been in Brazil for a couple of years, returns and upsets the current order.