It's Vienna 1903. An operatic diva, Ida Rosenkrantz, is found dead in her luxurious villa. It appears that she has taken an overdose of morphine, but a broken rib, discovered during autopsy, suggests other and more sinister possibilities. Detective Inspector Oskar Rheinhardt seeks the assistance of his young friend, the psychoanalyst Dr. Max Liebermann, and they begin their inquiries at Vienna's majestic opera house, where its director, Gustav Mahler, is struggling to maintain a pure artistic vision while threatened on all sides by pompous bureaucrats, vainglorious singers, and a hostile press.