
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...
Genres:

Mark Damon as Richard Barrett

Eleonora Brown as Lucille Moffat

Sally Smith as Jill

Patrizia Valturri as Denise

Ludmila Lvova as Mrs. Clay / Peter Moffat

Luciano Pigozzi as La Foret

Franco De Rosa as Detective Gabon

Vivian Stapleton as Miss Transfield

Ester Masing as Miss Martin

Aldo De Carellis as Professor André

Giovanni Di Benedetto as Di Brazzi

Valentino Macchi as Policeman

Umberto Papiri as Simon

Caterina Trentini as Betty Ann

Silvia Dionisio as Margaret

Lorenza Guerrieri as Wendy

Malisa Longo as Cynthia Fellows

Paola Natale as Maid

Michael Rennie as Inspector Durand

Nando Angelini as Blond Policeman (uncredited)
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