This is a rather basic crime drama that showcases the talents of Frank McHugh ("Clancy") and Allan Jenkins ("Duggan") as a couple of detectives called to a big house to investigate the murderous shenanigans of the "Black Ace". The mysterious killer has a habit of impaling his victims and he wants them to see what's coming to them as he does the deed, too! Writer Ralph Spence maintains quiet a bit of suspense as the small cast - led by Chester Morris ("Broderick") and Henry Stephenson ("Drake"), alongside the glamorous Vivienne Osborne ("Martha") keep us guessing as to who might be the elusive monster. It's hardly an hour in length and it moves well with decent performances all round. The not-so-dynamic duo do grate after a while, but their's is not really my kind of humour, so I can't really hold that against this cheap and cheerful, throwaway drama that entertains well enough.

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