Desert Vengeance (1931)

Brother and sister Hugh and Anne Dixon pull their fake suicide scam on Jim Cardew. Hugh leaves a note for Jim to take care of Anne. After Jim proposes and leaves money to Anne, he learns of their scheme. Not revealing his knowledge he gets them to return with him to his desert hideout where he and his outlaw gang reside and from which the Dixon's only escape is 30 miles of desert on foot.