The Headless Rider(1973)

The film takes place in 1850, Texas, United States. Louise, daughter of the wealthy plantation owner Poindexter, master of the hacienda Casa del Corvo, falls in love with a poor mustanger Maurice Gerald. The night their secret rendezvous happens, her brother Henry disappears. Suspicion in murder falls on Gerald, who was found covered in blood, with signs of struggle on the body and on Henry's cloak. One more minute, and an angry crowd would have Gerald lynched, but then the mysterious Headless Horseman appears...