American gets invited to a family pile unaware he is related. Also unaware that an inheritance is involved.
Odd match up between Hammer Studios and American producer, William Castle, yields a horror film remake that's more Bob Hope than Boris Karloff. Tom Poston, alas, is no Bob Hope.
I thought this great fun as a kid though and the supporting cast are deliriously charming, notably Peter Bull and Joyce Grenfell.
Given Bob Hope's output of the 1960s, it's probably a blessing he wasn't in this. As it is, slight but amusing. Could have been much livelier, though. One of Castle's gimmicks would have been welcome.
of note, this film was made in color, but released theatrically in B&W. The color version was not seen until the days of home video. Also, the British version was passed uncut with an 'X' rating in 1963, but not released until three years later, cut by nearly ten minutes with an 'A' rating. Odd, considering how tame the film is, even by 1963 standards.