Flesh and Bone (1993) on Netflix

While helping his grifter father burgle a house in rural Texas, young Arlis Sweeney watches him murder the entire family, leaving only a crying baby. Fast forward 30 years. Arlis has settled into a bleak routine restocking vending machines on a route that includes "a place to eat, a place to sleep, and a woman" in every dusty roadside town. Into this routine falls Kay Davies, another damaged soul down on her luck and stranded away from home and her abusive ne'er-do-well of a husband. Arlis is going that way and agrees to give her a ride. While the two are at her house, movers arrive to take the furniture, which her husband sold to pay gambling debts. Seeing nothing to remain for after a confrontation with her husband, Kay leaves with Arlis. Arlis and Kay begin to fall for each other. In the middle of a rainy night, a knock on their motel door introduces Ginnie, a young woman who makes her living stealing jewelry off corpses in funeral homes. Pleading car trouble, she leads Arlis to her car where his estranged father Roy, who exudes sleaze and criminality, is waiting with a back full of buckshot. Arlis patches up his father and lets the pair spend the night in his room. The next day, they go their separate ways. As Ginnie and Roy pass an abandoned house, Ginnie remarks that it's the same house that's in a photograph that Kay is carrying with her. Roy realizes that Kay must be the crying baby he spared 30 years ago. Roy hates loose ends. Arlis comes to the same realization, and tries to break it off with Kay, leaving her in the motel room with some goodbye cash while he goes on a business errand from which he doesn't plan to return. Possibly changing his mind, he calls Kay's motel and learns that she left with Ginnie. Judging by the directions that the motel clerk said Ginnie asked for, Arlis guesses that they're headed for the old house. In fact, Roy was setting a trap for him. Ginnie tells Kay that there's a surprise in store for them at the old house. Arlis soon arrives, and after Roy sends the girls out for a walk, he and Arlis have a confrontation. Roy says he can't trust Arlis not to tell Kay that he murdered her family, so one of them will have to kill Kay. Instead, Arlis shoots his father. Arlis finds it too painful to be with Kay, and too painful to try to explain her past to her (she was told by her foster parents that her family died in a car crash). He tells her "Some things, it just don't do no good to talk about." Kay doesn't understand, but realizes that she and Arlis aren't going to make it. As he told her, he's a creature of habit, and she doesn't fit in. Regretfully, they part.