Pamela Haag has written the generational "big book" on modern marriage, a mesmerizing, sometimes salacious look at the semi-happy ambivalence lurking just below the surface of many marriages today. The spouses may rarely fight—they may maintain a sincere affection for each other—but one or both may harbor a melancholy sense that something important is missing.

Remarkably, this side of the marriage story hasn't been told or analyzed—until now.

Meticulously researched and injected with insightful firsthand accounts and welcome doses of humor, Marriage Confidential articulates for a generation that grew up believing they would "have it all" why they have ended up disenchanted. Haag introduces us to contemporary marriages where spouses act more like life partners than lovers; children occupy an uncontested position at the center of the marital relationship; and even the romantic staples of sexual fidelity and passion are assailed from all sides—so much so that spouses can end up having affairs online almost by accident.

Blending tales from the front lines of matrimony with cultural history, surveys, and research covert-ops (such as joining an online affair-finding site and posting a personal ad in the New York Review of Books), Haag paints a detailed picture of the state of marriage today. And to show what's possible as well as what's melancholy in our post-romantic age, Haag seeks out marriages with a twist—rebels who are quietly brainstorming and evolving the scripts around career, money, social life, child rearing, and sex.

Provocative but sympathetic, forward-thinking and bold, here, at last, is a manifesto for living large in marriage.