Plot
Colonel Barclay is found dead and his wife is arrested for the murder, but Holmes is convinced a missing door key will reveal the true killer.
| Writer | Arthur Conan Doyle |
|---|---|
| Director | George Ridgwell |
| Actor | Eille Norwood, Hubert Willis, Jack Hobbs |
| Country | United Kingdom |
| Production | Stoll Picture Productions |
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