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The Fox publicity department worked overtime promoting the studio's November 1915 release The Blindness of Devotion. According the Fox flacks, leading man Robert B. Mantell was "America's foremost tragedian," while leading lady Genevieve Hamper had "the most beautiful face on earth." It's too bad that the talents of these two luminaries were squandered on this film, a so-so adaptation of an old French stage melodrama. A wealthy count (Mantell) promises a dying friend to raise the friend's son as his own. Fifteen years later, the count "adopts" another child, this one his own 17-year-old niece. Falling in love with the count's stepson, the niece secretly makes plans to marry him. But the boy is far more interested in the count's new young wife (Hamper), who reciprocates his affections. The count's wife despises the niece, and it is this hatred that dictates the story's excessively tragic outcome.