William Shatner's A Twist in the Tale - Plot Synopsis: Bertie

A tragic accident leaves Bertie a reluctant ghost - a ghost who can’t bring himself to scare the living, and one who has yet to master the simplest skills of the afterlife - dematerialisation, for instance, or how to walk through walls. Unfortunately for Bertie, his haunting is being overseen and critiqued by a very tough taskmaster: Mr. Pym, the ultimate spectral bureaucrat. And Bertie has been assigned a most specific task: no one who is not part of the Milton family must be allowed to stay in the rambling old Milton Hall - which, since the Milton line has entirely died out, is kind of a tall order ...
... And does not bode well, in 1998, for the Rhodes family - David, Paula, and their two children, Kate and John. David is a writer; he and his agent, the excitable Hugh, are in the final stages of negotiation of the sale of the screenrights to his latest novel. Perhaps rather precipitately, David has bought the Milton mansion against the vast profits he and Hugh confidently expect to flow in when the deal goes through ... But will it?

Al Wicks, the fast-talking and very overbearing American producer interested in the project, comes to dinner: but due largely to Bertie’s playful antics leaves in a fury, telling David he has just blown the best deal he’ll ever see. David is himself so angry at the changes Al was intending to make to his precious story he hardly cares: but how will the Rhodes family stay in Milton Hall without the sale of the book?
Several money-making schemes are cooked up between Bertie and the children, but all are foiled by Mr. Pym and an unexpected ally. Driven to distraction by his charge’s hapless good humour, Mr. Pym has summoned the man who brought Bertie up: if anyone can bring the undisciplined spook into line, it is his authoritarian grandfather, Sir Jasper.

So the Rhodes family becomes part of the Miltons, and are permitted to stay. Sir Jasper now throws his redoubtable energies into securing their fortune: he and his ghostly bride choose to take their honeymoon in the Malibu mansion of Al Wicks, and prove very persuasive. Al relents; David’s deal is made; and the family settles into what, in a strange twist of fate, has become their ancestral home.