Although any number of Italian gialli ("Nude Si Muore", "What Have You Done to Solange?", etc.
Suzy Kendall, another love of my youth and always! Admired in "To Sir, with Love" (1967), "The Penthouse" (1967), "Up the Junction" (1968), and especially in the fascinating role in "Fraulein Doktor" (1969) and in "Fear Is the Key"(1972).
What seems like a good size school of "Red Herrings" swim past the screen of this very British "who done it?" Although obviously marketed as a lurid school girls in trouble film, under such names as "The Creepers", "Satan's Playthings", "Tower of Terror", "Assault", and "In the Devil's Garden", the movie is not a horror, or sex film, but a fairly decent mystery thriller.