The title character in this German backstage musical is Grete Schubert (Else Elster), a pretty blonde who indeed has the voice of a nightingale. While squandering her talents in a cheap cabaret, Grete is discovered by a pair of ambitious theatrical agents. Try as they might, they can't secure a decent booking for the girl, but there's still one chance left in the form of Ziegfeld-like impresario Hirschfield (Paul Kemp). Alas, the Great Man is too busy to see either the agents or their client. Tired of being treated like a commodity rather than a human being, Grete tries to escape her mentors, only to accidentally run into Hirschfield on her own. Sure enough, the celebrated showman makes her a star, and even plays Cupid between Grete and her stagehand boyfriend Walter (Arthur Hell). ~ Hal Erickson, Rovi