A woman is strangled in the bath by a black-gloved killer who disposes of her body in a large trunk. The trunk is delivered to St. Hilda College, an exclusive finishing school. Betty-Anne, one of the female students, is strangled in the school cellar. The police, led by Inspector Durand, are called in to investigate. Suspects include La Floret, the voyeuristic gardener; Di Brazzi, the new swimming instructor; Mrs. Clay, the summer school French mistress; an old professor who collects birds; and a philandering young teacher called Richard. The murders continue but Jill, a keen amateur detective, helps the police identify the unlikely killer...
Cast
Mark Damon
Richard Barrett
Eleonora Brown
Lucille Moffat
Sally Smith
Jill
Patrizia Valturri
Denise
Ludmila Lvova
Mrs. Clay / Peter Moffat
Luciano Pigozzi
La Foret
Franco De Rosa
Detective Gabon
Vivian Stapleton
Miss Transfield
Ester Masing
Miss Martin
Aldo De Carellis
Professor André
Giovanni Di Benedetto
Di Brazzi
Valentino Macchi
Policeman
Umberto Papiri
Simon
Caterina Trentini
Betty Ann
Silvia Dionisio
Margaret
Lorenza Guerrieri
Wendy
Malisa Longo
Cynthia Fellows
Paola Natale
Maid
Michael Rennie
Inspector Durand
Nando Angelini
Blond Policeman (uncredited)
Crew
Antonio Margheriti
Director, Screenplay
Brian Degas
Screenplay
Mario Bava
Screenplay
Tudor Gates
Screenplay
Franco Bottari
Screenplay
Giovanni Simonelli
Story
Otello Colangeli
Editor
Dante Amatucci
Assistant Editor
Fausto Zuccoli
Director of Photography
Renato Savino
First Assistant Director
Nando Angelini
Second Assistant Director
Giuseppe De Blasio
Executive Producer
Franco Ciferri
Production Supervisor
Lawrence Woolner
Producer
Virgilio De Blasi
Producer
Antonio Visone
Production Designer
Giancarlo Ferrando
Camera Operator
Mario Giorsi
Costume Designer, Set Decoration
Franca Cotroneo
Hairstylist
Pierantonio Mecacci
Makeup Artist
Sandro Occhetti
Sound Mixer
Fausto Achilli
Sound Mixer
Giuseppe Di Liberto
Sound Engineer
Carlo Savina
Original Music Composer, Additional Music, Conductor
Don Powell
Additional Music
Eva Koltay
Script Supervisor
Giovanni Masini
Production Manager
Antonio Trapasso
Production Secretary
