Directed by Harry A. Pollard | Starring: Virginia Valli, Percy Marmont, Margarita Fischer, Donald Keith

Sidney Page is a beautiful young nurse, the object of the romantic attentions of several young men in her small town. One of them, a mysterious fellow known as K, suddenly finds that the life of his rival for Sidney's hand depends upon his revealing the secret of his own past.

IMDb K - The Unknown movie posters