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Young Linda Channing visits her fiancé Ian Faulkner at an old aristocratic residence near London. Here he witnesses several mysterious murders. There are no clues to these murders - only bloody corpses and the terrifying sound that always comes shortly before the murders. Inspector Mark Santini embarks on the investigation and slowly unfolds a story full of old wrongs and terrifying revelations...
as Linda Channing
as Mr. Miller
as Elizabeth Janus
as Inspector Mark Santini
as Betty Miller
as Ian Faulkner