Werner von Basil, a Austrian intellectual, was captured by the Nazis in 1938. They want to break him to confess smuggling. Without any mental sustenance, the only thing left to keep his mind busy is an old tactics book for chess.
Curd Jürgens
as Werner von Basil
Claire Bloom
as Irene Andreny
Hansjörg Felmy
as Hans Berger
Mario Adorf
as Mirko Centowic
Hans Söhnker
as Bishop Ambrosse
Rudolf Forster
as Hotelmanager
Jan Hendriks
as First Officer
Albert Lieven
as Hartmann
Dietmar Schönherr
as Rabbi
Wolfgang Wahl
as Mondgesicht
Albert Bessler
as Scientist
Alan Gifford
as Mac Iver
