Hammer Horror film set in Egypt 1920. Sir Basil Walden, with his assitants Claire, Harry and Paul, stumble on the sealed desert tomb of the young Pharoah Kah-To-Bey. When the expedition fails to return on time, Stanley Preston, father of Paul and financier of the expedition is forced into joining the search for the missing archaeologists. Against all local advice they excavate the tomb, releasing the mummy's spirit and body.