The film is based on a true dramatic story of the fate of a wonderful Russian woman - Countess Yulia Petrovna Vrevskaya, one of the first Petersburg beauties. The events of the movie take place during the Russian-Turkish war for the liberation of the Bulgarian people from the Turkish yoke. An early widowed baroness, having left Petersburg, and having invested all her money in organizing a volunteer sanitary detachment, she becomes a sister of mercy on the front of the Bulgarian war with the Ottoman Empire of 1878.

Marion and Ben, thirty years old, meet on Tinder. That's about all they have in common; but the opposites attract each other, and they decide in the early morning of their meeting to go on vacation together despite the advice of their entourage. They will finally leave - to Bulgaria, halfway to their dream destinations: Beirut for Marion, Biarritz for Ben. Without a precise plan and, as they will soon discover, with very different conceptions of what a dream holiday should be.