Apoiado pela sua mãe e muito ao pesar do seu pai, um garoto Australiano de classe trabalhadora decide se unir ao coro de crianças de Viena, resultando ter um extraordinário talento. Os ritos de iniciação que os novos meninos têm que afrontar dos alunos perto a se graduar no seu caso vai ser ainda pior, já que ele tem acordado os ciúmes de Peter, o líder do coro. A voz do Peter esta se debilitando, mas graças ao estimulo do diretor Peter vai encontrar um novo rol como compositor e diretor.
Karin (Eva Bartok) is a brilliant student whose good looks give her an added advantage in assuming the role of a prostitute and exploring Berlin's thriving sex industry. Hired posthaste by nefarious Madame Clavius, the pretty blonde sets about gathering information for her thesis when she discovers that her old friend Madeline has been financing her luxurious lifestyle by working as a call girl in the very same brothel. The situation turns sinister when Madeline reveals to Karin that she has fallen in love and longs to start a new life, but any girl who tries to leave Madame Clavius soon turns up dead. When Madeline admits to considering suicide, Karin hatches a plan for both of them to make a clean break from the brothel and avoid Madame Clavius' deadly wrath.
Klaus is a young man in post-war Berlin. He is drawn to his friend Manfred and, under the encouragement of their acquaintance, Dr. Winkler, explore the underground world of gay clubs and electronic music. His family begins to learn of his other life and do everything they can to set him straight.