Overview
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.
Cast
- Donald Pleasence as Inspector Calhoun
- Norman Rossington as Det.Sgt. Rogers
- David Ladd as Alex Campbell
- Sharon Gurney as Patricia Wilson
- Hugh Armstrong as The "Man"
- June Turner as The "Woman"
- Clive Swift as Inspector Richardson
- James Cossins as James Manfred O.BE.
- Heather Stoney as P.C.W. Alice Marshall
- Hugh Dickson as Dr. Bacon