Manhattan Murder Mystery

Carol Lipton (Diane Keaton), a bored Manhattan housewife, becomes convinced that her next-door neighbor has murdered his wife after the woman suddenly drops dead, prompting suspicions of foul play from Carol and her middle-aged husband. When her skeptical spouse, Larry (Woody Allen), rejects the idea, Carol enlists a flirtatious friend (Alan Alda) to help search for clues, and as their enthusiasm for the case grows, so does their mutual interest. Spurred on by jealousy and by a seductive writer (Anjelica Huston) who's also excited by the mystery, Larry reluctantly joins the chase, only to learn that much more than his marriage is at stake.