Criminal Conversation is a novel published in 1994 by Evan Hunter, set in Brooklyn, New York.

Plot

Sarah Welles, 34, a private school English teacher, is happily married to Assistant District Attorney Michael Welles, Organized Crime, Manhattan. Welles is chasing suspected Mafia-connected businessman Andrew Faviola, 28, son of jailed don Anthony and himself pushing to establish a new territory by the creation of "moon rock," a brand of cocaine and opium with far-reaching interests.

Andrew and Sarah meet while she is on holiday in the Caribbean. Little does she know that after he saves her pre-teen daughter from drowning, he will come after her next-or that their rendezvous at his apartment are being taped by her husband under the pretext of nailing him.