 In the little town Rochefort lives Delphine (Catherine Deneuve) and Solange Garnier (Françoise Dorléac), two musical twins that teach music and dance to kids. One day, Etienne (George Chakiris) and Bill (Groover Dale) arrive in town, and need the twins help with a song and dance-number. Also, the famous piano-player Andy Miller (Gene Kelly) comes to town to help an old friend.