Pursued (1947)

Orphaned Robert Mitchum is haunted by nightmares of the night his family was massacred. Taken in by a local family, he grows to fall in love with his adopted sister and develops a feud with his adopted brother, a feud that continues the one that had resulted in the death of his family. It’s an unusual mix of Western and noir that hinges on Mitchum’s steadfast but troubled performance, ably supported by Teresa Wright as his love interest.