An ancient mansion used to house wounded soldiers becomes the scene of murder, but since the physician in charge is Dr. John Watson, can his famous friend be far behind? Together Basil Rathbone and Nigel Bruce uncover a dangerous legacy in this whodunit. Hillary Brooke, Milburn Stone co-star. Based on Conan Doyle's "The Musgrave Ritual." 68 min. Standard; Soundtrack: English mono.