This movie was in color. I saw it on a friends system and he had it digitally recorded. I don’t know the source but I would guess DVD or BluRay. The man was wearing a jacket and cap (looked like fatigue jacket and cap), the woman was a blonde, wearing a black or very dark overcoat. He chased her down a stairwell and catches her, grabs her and then pulls a hypo, bites the cap in his mouth to remove it, and injects her in the neck. She then either passes out or dies; I didn’t see much more of the movie and I would like to view it all. That scene was powerful and ugly. I think it was a horror genre, but not sure. He erased the recording and doesn’t remember it.