Naturally there is a mix-up and they enter the wrong house... one that is being used by Nazi spies led by Bela Lugosi. The spies want to get rid of the Boys and so play at spooks with various hidden trapdoors and panels behind pictures...
When we get onto the actual spookiness the film is fairly good though not very original. The earlier wedding segment does drag a bit with various gags which are stretched a bit thin. Luckily the film stays modest. Its a passable time waster but not much more.
