

Two KGB agents are fighting against foreign spies before and during WWII.
Dr. Frankenberg
The original title is "По тонкому льду" (RU).
The film was directed by Damir Vyatich-Berezhnykh.
The screenplay was written by Ivan Bakurinsky and Yulian Semyonov.
The score was composed by Mieczysław Weinberg.
Cinematography was handled by Nikolay Olonovskiy.
The film features a large ensemble cast of over 55 credited actors.
This title is listed on IMDb as tt0188147.
Good
8 votes
По тонкому льду
Released
Pусский
Soviet Union
