Not sure of title

I recently watched a film which was something of a horror comedy.

Set in a world where there were either demons or possessed people.

I remember one scene where they go to see such a demon/possessed homeless woman. Who gets beat up by the detective in order to get information. To the shock of the people around them.

That’s all I can remember. I can’t even remember if it was any good, but wanted to give it another go.