'Caligula' portraits the coming and going of Caligula (Malcolm McDowell), the famous Roman emperor. A man with control of the world who employs violence to gain the throne, killing anyone or making fools of the people whom do not satisfy him. A crazy man who's sponsors orgies and sleeps with his sister attempts to takeover England before his fitting end. Caligula not only slept with his sister and had orgies but was also married to the most well known prostitute in Rome.