In "The Climax," Dr. Hohner (Boris Karloff), the theatre physician at the Vienna Royal Theatre, is driven to murder his mistress, the star soprano, due to his intense jealousy and growing madness. Ten years later, a young singer named Angela Klatt (Susanna Foster) arrives, reminding Hohner of his lost love and reigniting his obsessive mania. Determined to keep Angela from singing for anyone but himself, Hohner plots to silence her forever. As her life is endangered, Angela's fiancé, Franz Munzer (Turhan Bey), desperately races against time to save her in a suspenseful climax. Cast: - Boris Karloff as Dr. Friedrich Hohner - Susanna Foster as Angela Klatt - Turhan Bey as Franz Munzer - Gale Sondergaard as Luise - Thomas Gomez as Count Seebruck - June Vincent as Marcellina - George Dolenz as Amato Roselli - Ludwig Stössel as Carl Baumann - Jane Farrar as Jarmila Vadek - Ern Verebes as Brunn - Lotte Stein as Mama Hinzl - Scotty Beckett as The King - William Edmunds as Leon, theater concierge - Maxwell Hayes as Count Romburg, King's aide - Dorothy Lawrence as Miss Metzger Runtime: 86 minutes.