I am looking for this movie for a while...
I think it was Korean, possibly Chinese movie.
There were 2 groups of gangsters in a restaurant. Then they started flipping tables and shooting. From the one group the youngest member was shot (wounded) and from the other their chief was wounded.
So after that of course they couldn't go into hospital so the 2 gang groups went to the same doctor "improvised" hospital. And then there again with the shooting...
So the wounded young man escaped from the window. But he died in the car later.
His dead body was brought to his wife and she went "mental" and she burn down the house with her husband's dead body inside. She almost left her baby inside...