On the night of 16 July 1942, ten year old Sarah and her parents are being arrested and transported to the Velodrome d'Hiver in Paris where thousands of other jews are being sent to get deported. Sarah however managed to lock her little brother in a closet just before the police entered their apartment. Sixty years later, Julia Jarmond, an American journalist in Paris, gets the assignment to write an article about this raid, a black page in the history of France. She starts digging archives and through Sarah's file discovers a well kept secret about her own in-laws.

The action of the film takes place in winter Kyiv. After a sleepless night, a young composer goes for a walk through a snowy city in search of inspiration for a new melody; its route passes against the background of many sights of the capital. On the way, the hero observes city life and nature, people, near the maternity hospital he pulls out a happy young father who has fallen into a coma, and he notices a girl in a trolleybus. She is in a hurry in her affairs, and the enthusiastic composer follows her relentlessly. And every sound he hears becomes part of a new melody for him. The finale of the film is a panorama of Kyiv to the song "Two Colors".