Angela 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 Angela boarded. Three of the murdered girl's classmates, Franca, Paola and Virginia (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 Virginia 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 Angela 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..."

Fabio Testi
Inspector Gianni Di Salvo

Christine Kaufmann
Christina, Di Salvo's girlfriend

Ivan Desny
Chief Inspector Louis Roccaglio

Jack Taylor
Michael Parravicini
Bruno Alessandro
Di Salvo's Assistant

María Asquerino
Miss Graham

Helga Liné
Mrs. Russo

Silvia Aguilar
Virginia Nardini
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Release Date
August 19, 1978
Runtime
1h 25m
Rating
R
Genres
Horror, Mystery, Thriller
Director