Gertrude Bleul is quite adept at keeping the secrets of her mistress, the Countess von Breunner, as well as her own. Working as a ladies' maid for the Russian-born countess proves to be the perfect situation, except for the Countess' handsome guard with his piercing stare and stoic demeanor. He will protect her with his life, but she will never possess his heart.
Lieutenant Nikolai Veronia served Russia with honor, and his brave actions secure him a position of employment in the service of a grateful Countess von Breunner. Nikolai dedicates his life to protecting those in his care, but an unexpected attraction to the beautiful Bavarian maid blossoms into something he never expected.
When a photograph and a mysterious note arrive for the Countess, Gertrude and Nikolai must undertake a simple task, return to Vienna and await further instructions. On the Alpine Express, the duo realize there is more complexity to their mission than previously thought and passions ignite as secrets are unearthed in the snowy alpine mountains.