Twin brothers arrive in Rio during the Carnival. One is a priest and is going to work in a parish; the other, a drug-dealer, in a business trip to sell cocaine. They’re not aware of each other’s presence. People expecting them always get in touch with the wrong guy.
Angelo Russo, a sixteen year-old girl, is found dead in a river, having been fatally violated with a large blunt instrument. Inspector Di Salvo is assigned to the case and focuses his investigations on St. Theresa's, the exclusive school where Angelo boarded. Three of the murdered girl's classmates, Franca, Paola and Virgina (who call themselves "The Inseparables"), receive threatening poems from an individual using the name "Nemesis". Bizarre "accidents" start to befall the girls: Franca is injured when someone causes her horse to bolt and Virgina nearly breaks her neck on marbles left at the top of a staircase. But Di Salvo is determined to find the killer, even if it means using unorthodox methods. He is aided by Angelo Russo's little sister Emily, whose helpful clues lead to a boutique owned by a dubious character and a vice ring where "rich influential men pay well for teenage favours" ...
호수 근처의 보트 하우스에 '패션 플라워'라는 이름을 가진 호텔을 만든 학생들은 그들의 젊음을 발산하기 위해 아테네식 스트립쇼를 개최해 대성공을 거둔다. 그러나 '무제한 사랑 클럽'이라는 학생 클럽은 그 사건으로 학교의 압력을 받게 되고 누군가 책임을 져야할 상황에 이른다.