Jérémie, bicycle courier, crisscrosses the city at full speed; he delivers anonymous backpacks, blindly following the instructions of his boss Dom. Lonely, Jérémie records a podcast in which he shares his conspiratorial view of the world. His daily life is turned upside down by the arrival of a new neighbor, Élyane Boisjoly, a famous instagrammer for whom he develops a fascination. His life is turned upside down when one night his obsession with Élyane disturbs him to the point of making him miss a delivery. In a violent manhunt orchestrated by Dom, Jeremy has no choice but to act.