Whistling Hills (1951)

Plot

Chet Norman, owner of a stagecoach line, enlists the help of Johnny Mack Brown to tackle a peculiar thief. This enigmatic figure, cloaked in knightly attire, has been disrupting their operations by playing eerie tunes that signal impending robberies. As Johnny delves into the mystery, he uncovers the knight's unsettling connection to the heists and must confront both the criminal and the haunting melodies that accompany the thefts. With determination and courage, he aims to restore peace to the stagecoach line while unraveling the secrets behind the sinister music.