Federal prosecutor Daniel Wenner described the case as, “the bloodiest, most violent betrayal of the badge this city has ever seen.” Two decorated New York City police detectives, Stephen Caracappa and Louis Eppolito, committed various illegal activities on behalf of the Five Families of the American Mafia, spanning from the mid-1980s to 1990. This is the story of how their moonlighting gig was discovered by efforts of the FBI, DEA, as well as prosecutors, investigators, and staff of the United States Attorney’s Office – and a woman named Betty Hydell.