Raina a Bulgarian woman from a wealthy family, learns from her mother cetherime that the Bulgarian cavalry have won a battle against the serbs. Catherine says that sergins, Raina fiancé was at the head of the charge. Raina keeps in her bedroom. Louka, their servant, enters and warn Catherine and Raina that a serbs free from the battle and wanders in the area, seeking refuge in the houses of Bulgarian family. Raina is not worried. She does not lock her window.
In the night a man enters the room through the unlocked window and threats raina he wil kill if she makes a noise. The man is swiss and an escaped soldier fighting as a covetous for the Serbians. Raina is surprised to see that the man is tired and hungry. She helps him hide behind a curtain when Catherine louka, and Bulgarian officer enter to search the room. When they all go, Raina convinces him no one is in her room. She gives him chocolate creams she is very shocked to hear that the man has no bullets for his gun. He normally keeps candies in his pockets.
The man says that serbs are foolish and they have not any courage to fight with others. She rebukes him for making fun of her fiancé sergius. Catherine and Raina allow the man to sleep here.
Louka is engaged to the head male servant Nicola. Louka tells Nicola that he will never be more than a servant, and that she has high dreams. Louka tells that she knows many secrets of petkoff family, and nicola says that he does, too but would never blackmail his masters. Major petkoff, the head of the family return from the war. He tells to Catherine that sergius will never receive any military promotions because he has no command over his profession. Sergins comes and meets warmly with family and especially Raiina, who considers him a hero. Sergins and petkoff discuss about the swiss soldier who is hidden in Bulgarian house cotherine and Raina realize the story is about them but they remain silent.
Sergius speaks with Louka and starts flirting with her Loucka tells sergius that Raina might not remain faithful to sergius. A man named bluntschli enters the family garden. Catherine realizes that he is the man that hid in Rain’s room she becomes frightened that pelkoff and sergius become angry at the soldier. Sergius and petkoff do not know that the two women who helped the soldier are belouged to pekoff. Bluntschli has come to return Major petkoff’s coat that Catherine and Raina lent him to escape. Petkoff already met bluntschli during the war asks him to stay and pass the time.
Louka tells sergius that Raina is in love with bluntschli Raina explains that she has feeling for Bluntschli and not for sergius. Then Louka and sergius reveal their secret of love affair. Bluntschli, whose father has just died, has come into a great deal of money so Raina’s parents are glad to marry her off to him. Bluntschli promises to hire Nicola to run the hotels. Sergius and Louka accept their love publically.