Black and white mystery thriller, open plains valley and a woman who is being chased by this other woman (both on horses).. chased woman is frantic with fear of this mystery woman in black and she finds out the mystery woman is her ghost, she had died and wasn't aware of it. Saw this movie 4 yrs or so on turner classic movie channel and have searched continuously with no success. For some reason I keep thinking that John Carradine is in it.