The Unknown. Word Search Puzzle Solver. The Unknown word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. "The Unknown" was the final entry in Columbia’s I Love A Mystery series. A woman hires two detectives to keep her alive long enough to claim her inheritance. This includes identifying and searching for words that are related to : Horror, Helen Freeman, Mark Roberts, Thriller, Jim Bannon, James Bell, Mystery, Robert Wilcox, Barton Yarborough, Wilton Graff, Karen Morley, Robert Kellard, Jeff Donnell .