Not sure you want a humorous anecdote, but when I was in my early 20s and shared a place with my brother, we had similar neighbors, never stopped man. Back in those days my brother was a pretty intimidating figure, and one early, early sunday morning they were especially vicious and he'd had enough. He pounded on his wall screaming "SHUT UP!!!" and you heard the husband's whiny voice pop up "fuck you!!!". My brother, hungover and in his tighty whities, ran downstairs and out the door, and started pounding on their door "Get the fuck out here!!! What the fuck you say!!!" and so on. The dude never came down, and we never heard a peep from them again.
I agree with TAC, talk to the landlord, there has to be some clause in the lease about being a disturbance. Poor dude, I was in that relationship where the woman was off the rails and I had zero stones to do anything about it. It was hell. Hope there aren't kids in that household.
Edfit- And what Barto said too...