In punishment for a mortal sin committed, the soul of an Egyptian Prince has been reincarnated in the body of Monte, an African lion, and as time passes the fallen one ever seeks release to the soul of man. Sin has not been eliminated from the world, and extreme evil resides in the heart of Krama, an Indian Rajah. There is but one influence which this wicked Prince fears and that is the influence of the lion Monte which is now a member of his menagerie. Major Grey, an English army officer, is stationed at the military post in the district over which the Rajah rules. The major's daughter, Margaret, has just been betrothed to Capt. Carlyle, a young officer in the major's command. The Rajah conceives a wild infatuation for Margaret and being possessed of a weird hypnotic power, he proceeds to exercise it on the young girl to further his evil designs. The young captain is mystified at Margaret's growing indifference towards him and her apparent interest in the Rajah, not being aware that his sweetheart's will and mind are under the control of the Prince. At an embassy fete the Rajah, by silent command, compels the girl to meet him in the gardens. The captain jealously follows them, witnesses Margaret about to yield to the Prince's advances and promptly challenges him to combat. The guests interfere and a tragedy is averted. Margaret's father believes the captain to be a victim of unreasonable jealousy, and thus the breach between the young couple is widened. Irritated by the apparent animosity of the lion Monte towards him, the Rajah orders the beast killed, but the animal's keeper, who has become greatly attached to the lion, cannot induce himself to carry out his orders and to avoid his master's displeasure sets the lion free in the desert. The Rajah utilizes his power over Margaret and forces her to a clandestine meeting, whereupon he proceeds to forcibly carry her off. A guard, who has witnessed the event, reports the occurrence to Capt. Carlyle. The young captain, with a small detachment of his company, proceeds to the Rajah's palace to demand the return of Margaret, because from the reported events he now suspects the Prince's undue influence over his sweetheart. A servitor of the Rajah, whose ill-will he has gained, informs the captain of the secret retreat to which the Rajah takes his favorites and from whence they never return. Meanwhile, the Prince, who is carrying the unconscious girl across the desert, encounters Monte, the lion, which attacks him. The Prince is killed, and, having destroyed a thing of evil, the soul of the old Egyptian Prince is released from the body of the beast. The captain, in rapid pursuit of the abductor of his sweetheart, comes upon Margaret just as she regains consciousness, and now relieved of the Rajah's influence and once again her old self, a happy reconciliation takes place between the young lovers.