This is the desperate love story of an Ethiopian slave Aida (Sophia Loren) staying in the then capital of Egypt Memphis with the young Egyptian supreme commander Radames (Luciano). Aida’s mistress, Amneris (Lois Maxwell), the daughter of the pharaoh is too in love with Radames. Aida doesn’t know how to hide her love, and Amneris is jealous of her because of her beauty and simplicity.