- Country: Italy, Spain, West Germany
- Genres: Crime, Mystery, Thriller
- Release: 1978-08-19
- Director: Alberto Negrin
- Writers: Marcello Coscia , Massimo Dallamano , Franco Ferrini , Stefano Ubezio
- Language: Italian
- Stars: Fabio Testi , Christine Kaufmann , Ivan Desny (1922–2002) , Jack Taylor , Bruno Alessandro , María Asquerino , Helga Liné , Silvia Aguilar , Taida Urruzola , Tony Isbert
- Runtime: 85 min
- Awards: N/A
- AKA: Red Rings of Fear (United Kingdom) , Tráfico de menores (Spain) , Enigma rosso , O kloios tou tromou (Greece) , Crimen en el internado de señoritas (Argentina) , Enigma rosso (Italy) , Red Rings of Fear (United States of America) , Rings of Fear , Virgin Killer , Red Riddle , O Mistério da Adolescente Violada (Portugal, Portuguese Republic) , Rings of Fear (United Kingdom) , Rings of Fear , Красная загадка , Trauma (United States of America) , Virgin Terror (Australia) , Enigma rojo (Colombia) , Yön terrori (Finland) , Orgie des Todes , Parthenikos fovos (Greece) , Enigma rosso (France, French Republic) , Nemesis , Red Rings of Fear
- Plot: A detective investigating the murder of a teenage girl begins to focus his suspicions on the three girlfriends of the victim, who call themselves "The Inseparables."
- IMDB:tt0077505
Rings of Fear Cast · · · ALL
Alberto Negrin
Director
Fabio Testi
Inspector Gianni Di Salvo
Christine Kaufmann
Christina, Di Salvo's girlfriend
Ivan Desny
(1922–2002)
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
Taida Urruzola
Franca
Tony Isbert
Max van der Weyden
Fausta Avelli
Emily Russo
Fabián Conde
Mr. Mandel
Brigitte Wagner
Virginia
Carmen Carro
Ricardo Merino
Paola's Father
Tony Valento
Mr. Sataro
Cecilia Roth
Salesgirl
Wal Davis
Umberto Conti
Carolin Ohrner
Paola (as Elke Ohrner)
Peter Berling
Bit Part