Follows the outlines of the legend of Amphitryon, Alkmena and Jupiter, in which Jupiter descends to Earth to seduce Alkmena. Difficulties arise when the father of the gods is met with stubborn resistance. For Alkmena is faithful to her husband Amphitryon, and even the greatest god can win her only after much ungodlike embarrassment and, in desperation, the unsportsmanlike device of impersonating Amphitryon himself.