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Movies like The Wrong Bottle (1913)

Happy in her devotion to her unfortunate sister and the promise of honest love that had come into her life, the girl was perhaps blind to true values. She became indifferent to her life and its surroundings. Accordingly she accepted the stranger and his doubtful promises. Honest love and duty were forgotten, until, caught near life's uncertain edge, she was called back by her blind sister's peril. Thus was true love separated from blind infatuation and life's lesson learned.