A Mystery Known to All
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A Mystery Known to All at SFlix. Children from in a summer camp decided to invite a group of famous actors to visit them.
- Genre: Music, Family, Comedy
- Country: Soviet Union
- Director: Mykola Zasieiev-Rudenko
- Cast: Yulya Zhivotvorova, Yuri Prokhoda, Nadezhda Rumyantseva, Nikolay Grinko, Zinovi Vysokovsky, Valeriy Nosik, Yuriy Sarantsev, Yuriy Nikolaev, Sergey Alekseev,