Fast approaching the age when bachelors go from seeming curious to seeming weird, Oscar-nominated documentarian Dana Adam Shapiro set out across the country with a tape recorder in search of modern answers to an age-old question:

Why does love die—and what can we do to prevent it from happening?

It all began as a self-help journey in the purest sense. A serial monogamist for more than two decades, Shapiro had just ended his fifth three-year relationship and wanted to know why the honeymoon phase never lasted until the actual honeymoon. Believing that you learn more from failure than from success, he spent the next four years interviewing hundreds of divorced people, living vicariously through the romantic tragedies of others, hoping to become so fluent in the errors of Eros that he would be able to avoid them in his own love life.

The result is a timely treasure trove of marital wisdom—a provocative look inside the hearts, minds, beds, and e-mails of regular people who’d thought they found “The One” and lived to tell the tales of what went wrong. Shockingly intimate, universally relevant, and profoundly personal, this is a page-turning, voyeuristic peek into the private lives of our friends and neighbors that is as racy as it is revelatory. But ultimately, You Can Be Right (or You Can Be Married) is a hopeful investigation of modern love and a practical guide for any couple looking to beat the roulette-level odds of actually staying together forever.