A Scotsman named Gerald MacTeam (Richard Carlson (actor)) abruptly breaks off his engagement to pretty Kitty (Veronica Hurst) after receiving word of his uncle's death. He inherits a mysterious castle in the Scottish highlands and moves there to live with the castle servants. Kitty refuses to accept the broken engagement and travels with her aunt (Katherine Emery) to the castle. When they arrive, they discover that Gerald has suddenly aged and his manner has changed significantly.