Leslie, a young and idle suburbanite, drags his best friend Fox into a shady scheme across the Île-de-France. On a construction site for the future metro line of the Grand Paris, they discover a mysterious artefact. Another opportunity to make a little money. But along their journey, the Parisian suburbs become the scene of strange phenomena.

Leslie, a young and disillusioned suburbanite, drags his best friend Fox into a messy scheme all across Paris’ suburbs. On a construction site of the Grand Paris Express – the train of the future! – they discover a mysterious artifact. Just what they need to cash in a little extra.

For his first official investigation, Special Agent Van Der Byten is sent to Chelles, a suburb of Paris. His mission: to find the Mozeb. But what is the Mozeb? While his investigation stalls, he is confronted with a series of strange encounters.

It's summer in the Paris suburbs. It's hot, the city is deserted. Sometimes it's lonely when you stay home in the summer, and all you want is a little company.