Eben Adams (Joseph Cotten) is a struggling and mostly failing New York artist until one day, in Central Park, he meets Jennie (Jennifer Jones). Jennie seems to possess an almost mystical quality and as Eben sketches her, his work shows more expression and emotion than anything he has ever done before. But before he knows it, Jennie has disappeared. Eben frantically searches for his mysterious model and when they meet again a few weeks later, Jennie seems to have aged several years. What then unfolds is one of the most unusual and unforgettable love stories ever told as they are both swept up in a strange love that even time cannot contain.