Sixteen-year-old Seb, whose origins are unknown, cannot stand boredom. One day he decides to go looking for his biological parents together with a friend. He finds out that his father's name is Pierre Van Hove, then meets several men with this name and tries to ingratiate himself with one of them. Everything goes smoothly until he meets the seductive Julie, Pierre's daughter and perhaps his sister.

Seb, né sous X, ne supporte pas un moment creux. Il fonce, il prend, il zappe, rien ne peut l'atteindre puisqu'il ne vient de nulle part..jusqu'au jour où il obtient le nom de son père biologique.