'As humane as Maigret, as romantic as Marlowe, as intellectual as Philo Vance, yet stubbornly Italian.' Oreste Del Buono

'De Vicenzi, is an investigator who doesn't stop at the material evidence, but digs with uncommon passion in the psyche of his characters, and the atmosphere in which they live and operate... a rare delight.' Corriere Della Sera

'Compared to the mediocre rubbish published during his time by way of detective stories, De Angelis is a notable exception: for his literary talent, for his innovation of the genre, for his narrative technique (the detective story is 'all action, tense, vibrant, frenetic, extremely calculated" he theorised, expertly putting his theory into practice) and for the modernity of the figure of Commissario De Vincenzi, rigorous reasoner, philosopher in his heart, a committed reader, and true master of his clients' psychology.' Il Giornale