First, a St. Louis couple discovers the blueprints to their opulent 1908 home and trace its history back to the man who invented the gas-stove regulator. Next, a couple on a romantic weekend getaway winds up buying a 1912 Colonial Revival in Cape Charles, Virginia, and they discover a collection of family secrets stuffed behind the mantel. Finally, a woman buys a rundown 1920s craftsman-style home and discovers hidden clues about its former beauty and history as a lakeside resort.