不吃陌生人给的糖，保持警惕。激情综合网激情五月

　　A serial killer is terrifying the prostitutes in a big Italian city. After few barbaric murdering four prostitutes Lena, Angela, Nadine and Stella decide to unify and try to self-defend themselves. The police and all the other prostitutes agree with the four and the hunting is open. Who is the cruel killer?