In Russia, a man and a woman got into an argument, which ended with the man being stabbed by the woman in the thigh, near the crotch. I don’t know what happened with the victim after the video, but the volume of outflowing blood suggests the femoral artery may have been ruptured.
Best Gore member @vr76 adds:
As I understand from their conversation, they are some kind of relatives with high tensions between each other. The man was filming because the woman threatened him with a knife, but at the same time he was directing threats at her as well.
Many thanks for the video, @vr76: