After his wedding night with beautiful Alcmene, Amphitryon leaves to participate in a war. Jupiter, who is fascinated by Alcmene's beauty, come to earth under the appearance of Amphitryon, accompanied by Mercury who has taken the appearance of Amphitryon's servant Sosie. Amphitryon is successful in war and sends Sosie back home to report this. Sosie is greeted by his look-alike Mercury, who beats him and convinces him that he Mercury is the real Sosie.
