The Bad Sister (1931)

Marianne becomes infatuated with the charming swindler Valentine, who exploits her feelings to secure her father's backing for a financial scheme. After making off with the funds and abandoning Marianne, she struggles with heartbreak. Meanwhile, her sister Laura harbors feelings for Dr. Lindley, aware that his affections lie with Marianne. When Marianne reappears and weds a wealthy suitor, Dr. Lindley shifts his attention to Laura, setting the stage for a complex web of love and betrayal among the sisters.