In Truly Madly Guilty, Liane Moriarty takes on the foundations of our lives: marriage, sex, parenthood, and friendship. She shows how guilt can expose the fault lines in the most seemingly strong relationships, how what we don't say can be more powerful than what we do, and how sometimes it is the most innocent of moments that can do the greatest harm.

Sophie Honeywell always wondered if Thomas Gordon was the one who got away. He was the perfect boyfriend, but on the day he was going to propose, she broke his heart. A year later, he married his travel agent, while Sophie has been mortifyingly single ever since. Now, Thomas is back in her life because Sophie has unexpectedly inherited his aunt Connie's house on Scribbly Gum Island - home of the famously unsolved Munro Baby mystery.

The Delaneys are fixtures in their community. The parents, Stan and Joy, are the envy of all of their friends. They’re killers on the tennis court, and off it their chemistry is palpable. But after 50 years of marriage, they’ve finally sold their famed tennis academy and are ready to start what should be the golden years of their lives. So why are Stan and Joy so miserable?

Alice Love is 29, crazy about her husband, and pregnant with her first child. So imagine Alice’s surprise when she comes to on the floor of a gym and is whisked off to the hospital, where she discovers the honeymoon is truly over - she’s getting divorced, she has three kids, and she’s actually 39 years old. Alice must reconstruct the events of a lost decade and find out whether it’s possible to reconstruct her life at the same time.

Madeline is a force to be reckoned with. She’s funny, biting, and passionate; she remembers everything and forgives no one. Celeste is the kind of beautiful woman who makes the world stop and stare, but she is paying a price for the illusion of perfection. New to town, single mom Jane is so young that another mother mistakes her for a nanny. She comes with a mysterious past and a sadness beyond her years. These three women are at different crossroads, but they will all wind up in the same shocking place.

Lyn, Cat, and Gemma Kettle, beautiful 33-year-old triplets, seem to attract attention everywhere they go. Together, laughter, drama, and mayhem follow them, but apart, each is dealing with her own share of ups and downs. Lyn has organized her life into one big checklist, Cat has just learned a startling secret about her marriage, and Gemma, who bolts every time a relationship hits the six-month mark, holds out hope for lasting love.

The plane is jam-packed. Every seat is taken. So of course the flight is delayed! Flight attendant Allegra Patel likes her job—she’s generally happy with her life, even if she can’t figure out why she hooks up with a man she barely speaks to—but today is her twenty-eighth birthday. She can think of plenty of things she’d rather be doing than placating a bunch of grumpy passengers.

Ellen O’Farrell is a professional hypnotherapist who works out of the eccentric beachfront home she inherited from her grandparents. It’s a nice life, except for her tumultuous relationship history. She’s stoic about it, but at this point, Ellen wouldn’t mind a lasting one. When she meets Patrick, she’s optimistic. He’s attractive, single, employed, and best of all, he seems to like her back. Then comes that dreaded moment: He thinks they should have a talk. Braced for the worst, Ellen is pleasantly surprised.

Newlyweds Sam Statler and Annie Potter are head over heels, and excited to say good-bye to New York city and start a life together in Sam's sleepy hometown upstate. Or, it turns out, a life where Annie spends most of her time alone while Sam, her therapist husband, works long hours in his downstairs office, tending to the egos of his (mostly female) clientele. Little does Sam know that through a vent in his ceiling, every word of his sessions can be heard from the room upstairs.

Brecken Hill in upstate New York is an expensive place to live. You have to be rich to have a house there, and Fred and Sheila Merton certainly are rich. But even all their money can't protect them when a killer comes to call. The Mertons are brutally murdered after a fraught Easter dinner with their three adult kids. Who, of course, are devastated.