They wanted to keep this riot quiet.

Upper West Siders Maureen and Jay Adolf were suing their neighbors Henry and Talia Siegel over “excessive and unreasonable noise” — $4 million worth, according to a Manhattan State Supreme Court filing.

The nature of the alleged noise at tony 607 West End Ave. was unclear, but court papers say it’s been “disturbing” the ‘Adolfs.’

Maureen Adolf told The Post the situation was a “very private matter” that was being settled. Talia Siegel refused to comment. The same day The Post made inquiries, the case was withdrawn.