Police use a beautiful woman as bait for a maniacal killer of women, whose impotence was caused by a depraved female SS officer.

Spring 1941. A group of soldiers under the command of Lieutenant Alexis Komninou, protects the border at Fort Rupel and prepares to accept the German attack. The officer together with the soldier Kosmas Georgiou undertake a spying mission of the German forces in Bulgaria.