Season 1: In 2001, Isabelle, Raphaël, Karim, and their teams had less than four months to get a new show on the air: Loft Story, a French remake of the Big Brother format. In France, they are the first ones to produce a ‘reality TV' show and have to invent everything from scratch. Culte is a fictional series inspired by real events.

Season 2: Longjumeau, 1996. Filip, Adel, and Frank, lifelong best friends, dream of breaking through the walls of their suburban town. Will they manage to survive their dream and remain faithful to their friendship?