A Nigerian girl is killed. After a series of blunders, Coliandro is accused of being racist. He is taken off the case and assigned to escort Kiru, the victim's sister, from Nigeria. The two wind up having a passionate affair as Coliandro discovers that the victim was actually a maid killed by Kiru's sister, who was trying to get her hands on a large sum of money.

Jelena, a young woman of Slavic origin, steals Coliandro's pistol while he is trying to arrest her for theft. Unable to let his fellow officers or superiors know what has happened to his weapon, Coliandro sets off on yet another personal investigation. In his search for the pistol, he uncovers an alliance between the merciless "Balkans Mafia" and the Neapolitan Camorra, as well as a racket involving the recycling of toxic waste.

A minor murder case would go unnoticed, were it not for the escorts, or high-class call girls, involved. Plus the fact that the investigation is being sandbagged from on high. Though Coliandro is told to work on other matters, he naturally begins a counter-investigation of his own. With the help of Simona, also an escort, he uncovers a complex plot that incriminates deviant portions of the secret service and strongholds of economic and political power.