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…

Sandy has stumbled onto a lair of torture and humiliation. She was abducted and brought to this pit of pain as the next intended victim. But Sandy overthrows her captor and kills him. Does she release the other prisoners? Does she call the police? No. Her mind snaps and she assumes control over the prisoners, taking them as her own playtoys. Naked bodies writhe in ecstasy as blood runs down the walls in this chilling tale of madness and revenge