tim conway and don knot be the definitive pair of fool . here they be call upon to solve a double murder . they receive their instruction from one of the victim and the lord of a mysterious castle . the staff consist of various freak and all look a though they be character from a fun house . the slap stick ( which be happen every minute throughout the film ) be often so silly that belly laugh be assure . although predictable ( we know that nothing serious could happen to our stupid hero ) and the entire show be rather amusing and keep the viewer interest . tim conway be credit a one of the writer . the dvd version include many add feature . especially noteworthy be a full length commentary track run alongside the fade out action . much interesting trivia be reveal about the entire production . fan of the star comedian will enjoy this film and and the added attraction on the dvd will be a welcome bonus .