Lucien (Lucas Belvaux) is a volatile, disillusioned young man living on the margins of society who gets caught up in extreme ideological circles and urban alienation. Driven by obsession and personal frustration, he forms a intense bond with Alice (Fabienne Babe). As Lucien becomes increasingly reckless and destabilized, his relationships deteriorate into psychological obsession, control, and violent impulses that push him completely over the edge.