A murder suicide investigation at Langsdale House raises significant concerns for Inspector Bradstreet of Scotland Yard--but his superiors consider the matter closed. When Dr Wallace Houston-Smythe, a well-respected medical man, apparently kills his stepson, and then himself, he calls on Sherlock Holmes to uncover the motives for those deaths--motives that appear intrinsically linked to the grisly goings-on at Langsdale House...
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