A Brooklyn man tried to shake down his married friend after filming him having sex with another woman — but he later showed the video to the man’s wife anyway, according to police.

Suspect Leroy Davis, 32, allegedly set up his buddy with a woman for a sexual affair on Aug. 18.

Davis then took items, including a Fendi bag and an iPad, to keep quiet about the film, authorities said.

He then allegedly showed the sex tape to the victim’s wife after the man failed to pay $500 to get the goods back.

Davis was arrested at his home on Aug. 30.