Rena, a 'fallen' folk singer from Corfu, lives in Athens with her bouzouki player brother, Stratos, while her cousin, Pepita di Corfu, with whom she bears a striking resemblance, is a big star in light music and lives in Rome with her fiancé, Antonio. Shipowner Lambros Fokas invites Pepita to his reception; they had met years ago in Naples, but she fails to attend. A cunning agent introduces Rena in place of Pepita. Initially, the ruse succeeds, and Fokas is captivated by Pepita-Rena. The deceit and impersonation unravel when Pepita comes to Greece for vacation. Fokas becomes furious, but Pepita calms him down. It's not like anything serious happened.