BBC adaptation of a Charles Dickens ghost story about a lone Signalman (Elliott) who is haunted by the image of man who appears at the mouth of the railway tunnel to warn of impending disaster. One of the best entries in the "A Ghost Story for Christmas" series, the horror is conveyed through Elliott's state of mind after witnessing an horrific mid-tunnel train collission, and is enhanced by bizarre tonal 'music' and a sense of total isolation. Best viewed late at night, The Signalman has stood the test of time and the image of the eyeless screaming phantom (complete with blue skin!) is enough to send shivers down the spine of even the likes of M R James.