A happily married couple with a stalled sex life look to spice things up by agreeing to an experiment: for one night each partner can freely cheat on the other with no repercussions.

Laura thinks she's happily hitched, but when her husband Dean starts logging late hours at the office with a new co-worker, Laura begins to fear the worst. She turns to the one man she suspects may have insight: her charming, impulsive father Felix, who insists they investigate the situation. As the two begin prowling New York at night, careening from uptown parties to downtown hotspots, they discover at the heart of their journey lies their relationship....

A wife's admission of unfulfilled sexual longings plunges Dr. William Harford, a New Yorker, into an erotic odyssey that could destroy his marriage and ensnare him in a lurid murder mystery.