It is spring in Florence and everyone around Marshal Guarnaccia seems to be in love, even his own son. The case he is working on, the murder of a young woman, seems to present no particular problems. No distressed parents, no political or influential connections, no pressure from the media. The investigation takes him only a few steps from home, to the Boboli gardens and to the artisans' quarter - where he knows everybody and everybody knows him. The locals also trust him - until he seems to be accusing one of them...

Then everything changes. A second death follows and Guarnaccia is convinced that it is his fault. The case becomes one of the most distressing he's ever had to handle. Burdened with guilt, he finds it impossible to trust his own instincts any more...But he has to learn to do so before he can get at the truth...