Rose rosse per il commissario

A telephone number on a fifty-euro banknote, a bunch of red roses, a suspicious florist. All apparently commonplace things, which could go unobserved by anybody... but not the eyes of the attentive and alert Grandini, a retired police commissioner. Is the telephone number a cry for help, or does the commissioner simply see mysteries everywhere? Let yourself get involved in this adventure and help the commissioner solve this enigma!