Chief Inspector Bianco from the drug enforcement unit is killed during a failed operation set to catch Zohran, a renowned drug dealer. His five-strong team, Sarah, Louvier, Rosier, Tony and Igor, are in shock. Bianco is replaced by Chief Inspector Ortéguy, an honest man, who is faced with a sorrowful team longing for revenge. Unlike Bianco who was always marginal and hot-headed, Ortéguy plays by the rules which leads him to be rejected by his new team. Day after day, he tries to impose his style and erase their memory of Bianco whose ghost still seems to haunt the station corridors. Ortéguy discovers that Bianco wasn't only after Zohran but also chasing Reval, a powerful member of the mafia. Fascinated by his predecessor, Ortéguy contacts Sandra, an escort girl and Bianco's informer. Seduced by the woman, he too throws himself into a battle against Reval. Ortéguy and his team eventually arrest Zohran who reveals a terrible secret: Bianco's operation failed because someone in his team betrayed them...
