When the girls begin to get murdered, suspicion focuses on both the wolves and on a handsome, newly hired science teacher, who might be a werewolf.

[3] One of the films screenwriters Ernesto Gastaldi explained that it was mandatory to give yourself an English name in Italian productions of the time because "that's the way the producers wanted it.

[4][5] Lowens described shooting the film as a chaotic experience with actors all predominantly speaking different languages: French, English, Italian and German.

[1] The American version of the film adds the rock song "The Ghoul in School" to the opening credits written by Marilyn Stewart and Frank Owens.

"[8] Danny Shipka, author of Perverse Titillation: The Exploitation Cinema of Italy, Spain and France 1960-1980 stated the film "won't convert any fans to the genre", due to a slow pace and poor dubbing in the English-language version.