A Study in Sherlock (S06E04)

During the transfer of two bank safe deposit boxes, thieves make off with them, prompting an investigation led by Detective Murdoch. The getaway driver is found dead at the scene. Unexpectedly, a man claiming to be Sherlock Holmes arrives and offers valuable insights. Dr. Ogden soon realizes that he is actually David Kingsley, a former patient with a history of mental illness. This "Sherlock Holmes" exhibits traits reminiscent of the legendary detective, showcasing an uncanny ability to analyze people and crime scenes.