The Girl Who Walked Quickly (Part 1) Armchair Thriller : Season 1 Episode 11

When young student David Cooper (Denis Lawson) disappears, both his girlfriend and his tutor suspect he is in danger. David has a paralysing fear of lifts and other confined spaces and, while the duo are searching for him, his phobia is proving invaluable to a menacing group of people with a sinister and ruthlessly violent agenda.