 Saadia (Rita Gam) is a wild, strange Arab girl whose life has been dominated by a local sorceress, a vengeful outcast in the community, who has convinced her she has the "evil eye" and brings disaster to all who love her. French doctor Henrik (Mell Ferrer) takes her to his clinic, for rehabilitation purposes, and falls in love with her as does his friend, Si Lahssen (Cornel Wilde), the reigning prince of this small Moroccan state. When a plague falls on the town, Saadia is convinced she is responsible, and rides alone into the mountain country to retrieve the plague serum being held for ransom by bandits. The love triangle dominates most of the rest of the film.