Poverty forced the lovely Englishwoman Nadine Talbot to take the place of governess in the family of a wealthy Turk from Constantinople. However, suddenly the girl found out that the Sultan’s vizier had already planned to marry her! In the East, where it is generally not customary to ask a woman's consent to marriage, Nadine has no one to ask for protection... no one except the fearless British intelligence agent Lyle Westley, whose life she once saved and whose heart, without knowing it, she won at first sight...