Castagnetti, a bee-keeping private detective, is hired by a businessman to find out who set fire to his car & why. It seems like a dead-end case, nothing more than an instance of mindless vandalism. But before long the businessman is receiving threatening phonecalls, his factory is burnt to the ground & an employee loses his life. Castagnetti traces similar cases of arson across the city & realises that this sort of systematic intimidation happens when the owner`s land is about to be redesignated as residential. That`s the time when developers can double their money...just as long as they`ve got someone on the inside of city hall to tip them off about the redesignation; & just as long as they can persuade someone to sell. The last person to stand in the developers` way was whacked in Milan a year ago. Castagnetti needs to solve the case before his client, & his city, are both buried in cement.