I don’t have whole lot of information about this video, but it looks like it could be from China. It’s a CCTV footage of a young guy attacking a girl in front of a group of people.
The girl reportedly ended up in a coma from the beating. She was cock-teasing the guy, then rejected him, then cock teased him again and kept doing it until he snapped and put her lights out.
Props to Best Gore member @sa4sa for the video: