Detective Fiddles While An Entire Household Dies
Although Basil is (as usual) fine in this film, as is Roland Young in a very limited part, the rest of the cast is made up of melodramatic performers, offering a sort of "acting" that - on screen - often makes their character seem impossibly odd. The huinchback and John the chess player are the most egregious examples of this.
But the main awfulness of this sort of film lies in the almost total ineffectiveness of the "genius" detectivd, who goes on ruminating and ruminating as one person after another is murdered, only to finally solve the case at the very last intended victim. It strains even my flexible credulity to think that either Vance or the police wouldn't have assigned bodyguards to the household after - at least - the second murder. Yet the slaughter continues, while Philo makes vague stabs at analysis.
This is not a dramatic flaw confinedf to just this film of course; several of the later Basil Rathbone Sherlock Holmes films meander through the blood much the same way. I think this makes for a usually dull film, unless some other aspect of the movie compensates for it: several stand-out performamces, snappy dialogue, etc. This film is bereft of much of that.
Any other films anyone can think of that might have the same sort of "clueless detective" in them?