It's good to have a ghost on your side in the private eye business, especially in cases when an invisible ally can really turn the tide in your favour. Mike Pratt plays Jeff Randall and Kenneth Cope is his ghostly partner Marty Hopkirk, cursed to wander earth for 100 years.
15. The Man From Nowhere Marty becomes alarmed when Jean gets involved with a man claiming to be the reincarnation of the deceased Marty himself. 16. When he Spirit Moves You Interesting developments occur when Marty discovers that a criminal posing as a New York detective can see and hear him when he is drunk. 17. Somebody Just Walked Over My Grave Marty materialises beside his grave one night to find someone digging in it! he summons Jeff, who arrives to see a man dressed in 18th century garb. 18. Could You Recognise the Man Again? Jean Hopkirk is held hostage to stop her giving evidence in a murder case and not even the ghostly Marty can find her.