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 the Olympics gone and her cabin rifled. Chan is reunited with his son Lee when the latter sneaks into the cabin through a porthole to play detective. On the train trip to Berlin, Chan learns that Lee saw Roland borrow a camera from Adams. Hughes overhears the pair speculate that the invention was smuggled off the ship in it. Hughes advises Chan to stop investigating, then spots a gun barrel in a passing car and pushes the pair to safety. A shot strikes their compartment window. Later, Hughes arranges for Adams' camera to be stolen, but finds nothing inside. A hotel maid