Two Austrian sisters Dagmar and Ursula Beyne go on holiday along the Amalfi coast in Italy, in the hope of finding their mother, who deserted them when they were young, they have recently inherited some money after the death of their father and want to share some of it with their mother. Ursula is quite a fragile girl though and on medication ever since the loss of her father. She also is somewhat telepathic and can foresee bad events in an instant. They book into a local hotel where Ursula's visions continue, she tells Dagmar her sister to stay clear of Filippo, a man who hangs out in the hotel bar as she says he will cause her death. Filippo is a heroin addict whose lover "Stella Shining" is the night club singer at the hotel, but that relationship is soon in trouble and Filippo makes his move on Dagmar. Meanwhile a masked and leather gloved man hires a local hooker, he wants to be a voyeur while she makes love to another man, she agrees and he hides behind the curtains in her room to watch the proceedings. When the deed is done the stranger savagely kills the hooker. Ursula wakes from her sleep with a scream, as she has felt that something bad has happened, she pleads with Dagmar that they should leave this place before its too late, but they disagree and stay. A young amorous teenage couple are turned away from the hotel and make their bed in a deserted part of the hotel, mid coitus they are interrupted by the killer, who slashes the boys throat before doing heinous acts on the girl. The shocking murders continue in abundance as the frantic search for the killer continues...