Iconic couples' therapist and best-selling author Esther Perel returns with a provocative look at relationships through the lens of infidelity, providing the insight we so desperately need to help us move beyond a simplistic discussion.

An affair: it can rob a couple of their relationship, their happiness, their very identity. Adultery has existed since marriage was invented, and so, too, have the prohibitions against it - in fact adultery has a tenacity that marriage can only envy. And yet this extremely common human experience is so poorly understood. What are we to make of this time-honoured taboo - universally forbidden yet universally practiced? Why do people cheat? When we say 'infidelity', what exactly do we mean? Is there such a thing as an affair-proof marriage? Is it possible to love more than one person at once? Can an affair ever help a marriage?

Psychotherapist Esther Perel is recognised as one of the most insightful and original voices on modern love. For the past 10 years, she has worked with hundreds of couples who have grappled with infidelity. Betrayal hurts, she argues, but healing is possible. An affair can even be the doorway to a new marriage - with the same person. With the right approach, couples can learn from these tumultuous experiences, together or apart. Weaving real-life stories with incisive psychological and cultural analysis, Perel invites listeners into a truly revealing exploration of modern marriage.