Butterfly (1924)

Hilary Collier sacrifices her own career to support the musical education of her younger sister, Dora (Butterfly), even giving up the man she loves to her precocious charge. When Dora decides to leave her husband for an eminent musician, Kronski--who is in love with Hilary--bitter conflict ensues; but disaster is averted when an unexpected event reunites Dora with Craig, leaving Hilary free to marry the musician.