On the Italian coast, writer Paul Decker has grown unhappy in his marriage and executes what appears to be a perfect murder of his wife. While Paul is believed to be writing a book in France, his stepdaughter, Candy, suspects him of murdering her mother, as well as her father years before. With the police unwilling to investigate any further, Candy sets out to confirm her suspicions and take Paul down herself.
Production
The absurd snorkel murder contraption
Cinematography
Shadowy villa interiors, très Hitchcock-lite
Acting
Mandy Miller's teen sleuth intensity
Director
Guy Green
Trivia, insights & behind the scenes
This was one of Hammer Films' rare forays into psychological thriller territory, abandoning their usual Gothic horror for coastal suspense.
The 'teenage girl vs killer' premise predates Halloween's final girl trope by two decades—Candy was doing Laurie Strode's job in a pencil skirt.
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