When Halfdan’s old flame, Karina, comes to town, the reaction of his jealous wife Märthe begins to concern him. But Halfdan has no clue that they’re in fact childhood friends, and the two women agree to keep Halfdan in the dark for a little while longer. When Märthe is on her way out of town, Halfdan sees an opportunity to replace his jealous wife with an actress in order to impress Karina. Karina tells Märthe about the incident and they decide to teach Halfdan a lesson. (Stumfilm.dk)
Count de Faber is working on a new type of explosive, but finds out that Professor Plussman has beat him to it. After an unsuccessful attempt to acquire the formula from Plussman, he breaks into the professor's house, steals the formula, and kidnaps his daughter, Mary. He takes her to Carlsten Fortress.
Jean Bazard (Carl Barcklind) and the lawyer Alphonse Carrel (Arvid Hammarlund) are rivals of the beautiful Rose Legrange (Maja Cassel), but Bazard wins her love. Carrel is more successful in his shameful economic speculations together with banker Leroux (Manne Göthson), who is Roses's uncle.