Charlie Chan's Greatest Case Charlie Chan's Greatest Case Charlie Chan's Greatest Case (1933) is an American pre-Code murder mystery film starring Warner Oland as the Oriental detective Charlie Chan. It was based on the Earl Derr Biggers novel "The House Without a Key" (1925). Oland made a series of Charlie Chan films; along with three others, this one is considered to be a lost film. "The New York Times" reviewer wrote, "As far as the mystery of these particular murders is concerned it is not difficult for the audience to decide on the identity of the slayer, but the manner in which Chan makes
Charlie Chan at Treasure Island houseman, Abdul, arrives, Charlie searches him and finds the holster that fits the knife. Abdul escapes, and the burglars discover Zodiac's vast files which he uses to frighten and blackmail others. Charlie realizes Bessie Sibley is providing information on others to protect herself, and that Zodiac was blackmailing Essex. Charlie burns Zodiac's office to protect the innocent. Essex's manuscript is a fictional account of Dr. Zodiac's blackmail scheme, and the next morning Charlie finds that the last page revealing who the murder was committed is missing. Charlie meets with Gregory, who says he is an insurance company detective investigating mysterious