A writer's mysterious disappearance on an ice-covered lake holds the clues to a missing gemstone and a grisly murder.

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Main Cast: Graham Greene, Joy Tanner, Gabriel Hogan, Roberta Maxwell, Shirley Douglas, Michael Hogan, Mag Ruffman, Frederic Forrest

Director: Carl Goldstein

Writers: Donald Martin, Paula J. Smith, Betty Jane Wylie

Editor: Paul Winestock

Cinematographer: Gerald Packer

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