The Scarlet Claw

Sherlock Holmes and Dr. Watson journey to Canada to attend a meeting of the Royal Canadian Occult Society in Quebec. Before long, they find themselves investigating a series of gruesome murders that the locals attribute to the legendary phantom marsh monster of La Morte Rouge. But Holmes suspects a master of disguise is the real killer, who might be anyone in the village. He contrives a clever trap and courageously sets himself up to be the killer's next victim. (official distributor synopsis)