Florence, 1965. A man is found murdered, a pair of scissors stuck through his throat. Only one thing is known about him - he was a loan shark, who ruined and blackmailed the vulnerable men and women who would come to him for help.

Inspector Bordelli prepares to launch a murder investigation. But the case will be a tough one for him, arousing mixed emotions: the desire for justice conflicting with a deep hostility for the victim. And he is missing his young police sidekick, Piras, who is convalescing at his parents' home in Sardinia.

But Piras hasn't been recuperating for long before he too has a mysterious death to deal with...