Dokumentarni film predstavlja življenje ene najbolj nenavadnih ikon 20. stoletja, Florence Foster Jenkins, ki se je oklicala za operno divo, čeprav je zaslovela kot »najslabša pevka vseh časov« v zgodovini posnete glasbe. Skozi preplet glasbeno dokumentarnega in igranega filma spoznavamo svet ženske, ki je svoje petje slišala drugače od drugih in bizarni fenomen njene slave. » Kraljico disonanc« odlično interpretira operna zvezda Joyce DiDonato. Scenarist in režiser je Ralf Pleger.
Florence Foster Jenkins is known as "the worst singer of all times" and yet she is a cult figure whose recordings still outsell many contemporary singers. Opera superstar Joyce DiDonato interprets the flamboyant "queen of dissonance". The involvement of the celebrated virtuoso makes it possible to contrast two different musical perspectives and gives viewers a vivid impression of the film's key conflict between inner delusion and external reality.