 Professor David Pollock (Gregory Peck) is an expert in ancient Arabic hieroglyphics. A Middle Eastern Prime Minister convinces Pollock to infiltrate the organization of a man named Beshraavi (Alan Badel), who is involved in a plot against the Prime Minister. The nature of the plot is believed to be found in a hieroglyphic code. Beshraavi s mistress, Yasmin Azir (Sophia Loren) is a mystery intertwined in the plot. Pollock needs her help, but when she repeatedly seems to double cross him in one escapade after another, he can t decide on whose side she is working. Ultimately working together, Pollock and Yasmin decipher the plot and set out to stop an assassination of the Prime Minister.