The Moth (1917)

Spoiled young heiress Lucy Gillam knows only a life filled with parties and flirtations until she falls in love with a man who loves only her money. She marries him, and after their child is born, she is confronted with life's harsh realities after her husband demands more and more money with which to support his mistress. When he tires of his other woman, he discards her and she kills herself. Suspicion for her death points to her ex-lover, and after much misfortune, Lucy is freed from the burden of her husband and faces life as a responsible adult.