Allie Kim suffers from Xeroderma Pigmentosum a fatal allergy to sunlight that confines her and her two best friends, Rob and Juliet, to the night. When freewheeling Juliet takes up Parkour--the stunt-sport of scaling and leaping off tall buildings--Allie and Rob have no choice but to join her, if only to protect her. Though potentially deadly, Parkour after dark makes Allie feel truly alive, and for the first time equal to the "daytimers." On a random...