Road Without End (1969)

A hustler hanging around in a luxury hotel steals a bag full of stolen jewelery from a gang, he leave the city but the gang are after him, on the road he finds a small motel where he hides the bag and work for the old guy who own the hotel and sleeps with his young wife, she tries to convince him to get rid of the old man but he falls in love with the old man's young and innocent daughter.