Ben finds an antique door knocker in his garden. A museum curator (Gattis) tells him it came from the demolished Geap Manor. A sinister old place which seemed to attract...unpleasantness. The curator tells Ben two tales from Geap Manor's past.
One is from 1786 in which everyone prances around looking like extras from 'Garrow's Law'. A businessman is a git and henchdeals. He has bought Geap Manor and weird noises emerge from the wainscots. Unpleasantness takes place.
The next tale is from 1927, at a party in Geap Manor Felix announces his intent to marry the wet Ruth. A nasty flapper pouts, Lady Constance (Jean Marsh) worries and a ghostly bride lurks.
After hearing these tales and how Geap's original owner Sir Roger and his pet necromancer Dr Unthank set the whole thing in motion back in Tudor times, what does Ben do? He goes home and puts the knocker on his front door.
Then he starts seeing things, among them visions of Sir Roger (Derren Brown) and there is a nasty twist ending. This was good, poor ferret faced Ben. This was better than ITV's 'Marchlands' and that dreadful BBC2 mangling of 'Whistle and I'll Come To You'.