When a government official disappears in the London tunnels, after several reports of missing people in the same location, Scotland Yard start to take the matter seriously, along with a couple who stumble into a victim by accident.
Acting
Donald Pleasence's wonderfully irritable Inspector Calhoun.
Direction
Sherman's cramped, dripping tunnel cinematography.
Writing
The heartbreaking 'Mind the doors' finale.
Director
Gary Sherman
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