I am looking for an american film, I saw on tv a few years ago. The hero, a deputant sheriff or something, kills his lover in cold blood, with repeated methodical punches and blows, mostly on her stomach and belly. At first, the poor victim, thinks that this is somekind of a sexual game, as the first blows, follow some very passionate kisses, and she is tolerant and enduring. Eventually she realizes that he is actually killing her. The wonder, silent protest and despair in her face, is for an Oscar! Does anybody know, which film it is? The actor ( killer ) is relatively new but good. I don’t recall his name.