K The Unknown. Word Search Puzzle Solver. K The Unknown word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. 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. This includes identifying and searching for words that are related to : Maurice Ryan, Mystery, Virginia Valli, William A Carroll, Donald Keith, John Roche, Percy Marmont, Myrtle Vane, Margarita Fischer .