One step forward, two steps back as Cannon hunts a mass murderer. Helping to cloud the facts: a police lab technician who's altering the evidence as quickly as it is found.
Where to Watch The Seventh Grave
Cast of The Seventh Grave
William ConradFrank Cannon
Shelley DuvallLiz Christie
Jeff Donnell
Robert Donner
Eldon Quick
John BadhamDirector
E. Arthur KeanWriter
Harold GastProducer
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