Generate a question that has the following answer: Laurent suffers from Down syndrome. for the following movie plot: The film cuts between two seemingly unrelated stories. One, set in present-day Montreal, stars Kevin Parent as Antoine, a successful club DJ torn between his new girlfriend Rose (Evelyne Brochu) and his still-complicated relationship with his ex-wife Carole (Helene Florent); the other, set in 1960s Paris, stars Vanessa Paradis as Jacqueline, the fiercely protective single mother of Laurent (Marin Gerrier), a child with Down syndrome who has a crush on Vero (Alice Dubois), a friend and companion who also has Down syndrome. The film builds toward the revelation of how the two stories are linked: after Jacqueline, Laurent, and Vero are killed in a car accident, Carole, Antoine, and Rose are their subsequent reincarnations.
What disease does Laurent suffer from?