Fanboy is a rock n' roll thriller that follows Xenos, a band on tour, and the obsessed fan that follows them.

Réal and François are two old buddies in their early 30s who reunite at last to unearth a time capsule bottle which contains their dreams and ambitions from 15 years earlier. The problem is, their little treasure is buried on a plot of land that now belongs to a grumpy old coot, Antoine. Paying big bucks to get at their bottle, they discover that Antoine's daughter, Lea is trying to become pregnant and seeks the help of a gay friend to do it. Back in boyhood mode, Lea becomes the object of their desire.