"The House In Nightmare Park" is old-fashioned by design (which is not a bad thing), but also draggy and dull (which is). To give you a sample of the level of humor on display, Frankie Howerd is asked at one point "Do you play (the piano) by ear?", to which he responds "No, I use my fingers". That's probably the best joke in the film....There is a good twist near the very end, but it's a case of too little, too late. The best thing about all of this is far and away that magnificent house - a feast for the eyes inside and out; I'd love to visit it and even stay there overnight! (edit: further research reveals it's the same house where other films such as "Murder By Death" were also shot, and is now a luxury hotel!). ** out of 4.