Mad Love
Overview
Richard de la Croix's brother, Andreas, has been driven insane by a notorious vamp and socialite named Sappho. A friend takes Richard to the Odeon to meet her, but when Sappho actually meets him, he is unaware that she is the woman who drove Andreas to be institutionalised. Sappho genuinely falls in love with Richard, and decides to leave her vampy ways and her older lover behind her so that she can have him.
Cast

Pola Negri
Sappho

Johannes Riemann
Richard de la Croix

Alfred Abel
Andreas de la Croix

Albert Steinrück
Georg Bertink

Helga Molander
Maria Garden, Richard's bride
Otto Treptow
Teddy

Elsa Wagner
Richard's mother
Ellinor Gynt
Dancer