A group of Soviet paratroopers are engaged in a secret operation in Adriatic sea during the last year of WWII.

Leader of a traveling gypsy band from the steppes of Bessarabia (now Moldova), Toma Alistar is a skilled violinist whose fame takes him on tours around European capitals and royal courts. He remains obsessed with his first love, beautiful Leanca who was married elsewhere while Toma was traveling, and spends his life and fortune trying to find her.