Italian partisans help a professor sent by the OSS to find an atomic scientist held by Nazis.
A devoted secretary embarks on a dangerous mission to try to find the elusive woman who may prove her boss didn't murder his wife.
A mystery writer is intrigued by the tale of notorious criminal Dimitrios Makropolous, whose dead body was found washed up on the shore in Istanbul. He decides to follow the career of Dimitrios around Europe, in order to learn more about the man. Along the way he is joined by the mysterious Mr. Peters, who has his own motivation.
