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 the earth for 100 years.
23. The Trouble with Women It's useful to have a ghost to help you when you are playing cards - but it's a game in which Randall is being framed for murder. 24. Vendetta for a Dead Man A vengeance-seeking escaped prisoner decides that since Marty Hopkirk, the man who put him in jail is dead, his widow Jean will have to be the one to suffer... 25. You Can Always Find a Fall Guy You don't expect to be double-crossed by a nun, unless she turns out to be something very different, which the unfortunate Jeff finds out far too late. 26. The Smile Behind the Veil Only a ghost would notice the smile behind the veil of a funeral mourner - but when Hopkirk does so, it reveals a strange murder mystery.