Mein Herz Ruft Dir is a tailor-made vehicle for Polish singing sensation Jan Kiepura. The star is cast as the lead tenor in a travelling operatic troupe, who while taking a boat to Monte Carlo falls in love with pretty stowaway Martha Eggerth. When the troupe's Monte Carlo engagement is cancelled, Kiepura tries to use his splendid singing voice to find a wealthy patron for himself and his co-workers. Nothing seems to work until he stages an impromptu street performance of Tosca, drawing a huge crowd away from an indoor performance of the same opera. Oh yes -- he also ends up marrying Marta Eggerth, who like everyone else in the film plays second fiddle to Mr. Kiepura. Director Carmine Gallone filmed Mein Herz Ruft Dir three times: this German version, the French Mon Coeur D'Appelle and the English-language My Heart is Calling.
by Hal Erickson synopsis