A chance encounter with an English intelligence officer compels the lovely blonde Charlotte to become a secret agent. A sudden passion for an English pilot, who vanished after a night of love, leads her into occupied France.

Now she is Dominique, a brunette, and awaits a meeting with nervous and loyal Julien, a member of the Resistance movement, along with trials no woman should face. She will be blackmailed, frightened by death, saved, and loved.