This is the episode in the TV series 'Hammer House of Horror' that everybody remembers, over 20 years since it was last broadcast. From the spine-tingling initial shot of the hitchhiker to the terrifying twist at the end, it is a minor masterpiece of film craft.
No one could have played the lead role better than Anna Calder-Marshall. Her terrified performance is truly convincing in so many little details. She is a highly intelligent performer whom I wish would appear more frequently on our screens.
When you first read the plot synopsis it seems unbelievable: how can a woman not know if the man by her side is her husband or a crazed hitchhiker? But it works. The viewer is unsettled and unsure. The tension slowly mounts as we keep watching for hints of menace in the man's eyes. The evidence seems to be there one minute but something else happens to restore the balance the next.
The best of a good series, now available on VHS/DVD.