Siegfried of Xanten snatches the Nibelung treasure from the king of the underworld and slays the dragon Fafnir, whose blood makes him invulnerable. Siegfried falls in love with Kriemhild, the sister of the Burgundian king. But only if Siegfried helps Gunther marry Brunhild will he be allowed to marry Kriemhild. He fulfills this condition, but the two women bring ruin upon Xanten and Burgundy...

Central America in 1915. It is the age of revolutions, tyranny, captains and colonels in a small provincial town that is often invaded by some revolutionary group or other. There is a brothel of which the Madame Simone and most of the girls, are French. Many of the girls are in love with rebel leader Carlos Ribas and when government troops re-occupy the area, they hide him. When the soldiers discover him, they take both him and the girls prisoner. The governor sends the girls out in a cart to amuse the troops, but they manage to escape along the way and take refuge in a convent where they take over the nuns.

A London slasher pack the suitcases of his victims before stabbing them to death in this adaptation of Edgar Wallace's 'Secret of the Black Suitcases.'