Florence, summer 1963. Inspector Bordelli is one of the few detectives left in the deserted city. He spends his days on routine work and his nights tormented by the heat and mosquitoes.With the help of his young protégé, the victim’s eccentric brother, and a semi-retired petty thief, the inspector begins a murder investigation. Each suspect has a solid alibi, but there is something that doesn’t quite add up...