Jimmy Bolt, a singer and dancer (and occasionally as a waiter) works at a varieté. The man may be talented, but he’s not exactly a big success, and things get complicated when a young orphan girl falls in love with the voice of another singer but then mistakes Bolt for him…

Willi Forst
as Jimmy Bolt, ein unberühmter Jazzsänger

Fee Malten
as Mady Smith

Oskar Karlweis
as Flooch - Impressario

Paul Otto
as Maxim Merblanc, ein berühmter Jazzsänger

Aenne Goerling
as Varieté-Direktorin, genannt 'der Lindwurm'

Ernö Verebes
as Alfonso di Bei Juanos, Tangokapellmeister

Paul Vincenti
as Mac Lioth, Jazzkapellmeister

Mathilde Sussin
as Pensionatvorsteherin

Edith Hermann-Röder
as Tänzerin

Tibor von Halmay
as Tänzer