The correspondence between Carrie Allsop and David Mayer reveals, piece by piece, the painful details of a devastating affair between their spouses. With each commiserating scratch of the pen, they confess their fears and bare their souls. They share the bewilderment over how things went so wrong and come to wonder where to go from here. Told entirely through the letters of two comforting strangers and those of two illicit lovers, Evidence of the Affair explores the complex nature of the heart. And ultimately, for one woman, how liberating it can be when it’s broken.

Overworked and underappreciated, single mom Amy Byler needs a break. So when the guilt-ridden husband who abandoned her shows up and offers to take care of their kids for the summer, she accepts his offer and escapes rural Pennsylvania for New York City. Usually grounded and mild mannered, Amy finally lets her hair down in the city that never sleeps. She discovers a life filled with culture, sophistication, and - with a little encouragement from her friends - a few blind dates.

As one of the most popular influencers on social media, Mia Bell has lived her life online for years. With her celebrity dog and gorgeous fiancé, she is planning the ultimate virtual wedding - expensive, elaborate, and entirely paid for by sponsors. But off-camera, her world is far from picture perfect. After being jilted by her fiancé and faking her nuptials to please her sponsors, Mia finally has had enough. She heaves her phone off a cliff, ready to live - and maybe find love - offline for a change.

Sydney Shaw, like every single woman in New York, has terrible luck with dating. She’s seen it all: men who lie in their dating profile, men who stick her with the dinner bill, and worst of all, men who can't shut up about their mothers. But finally, she hits the jackpot. Her new boyfriend is utterly perfect. He's charming, handsome, and works as a doctor at a local hospital. Sydney is swept off her feet. Then the brutal murder of a young woman—the latest in a string of deaths across the coast—confounds police. The primary suspect? A mystery man who dates his victims before he kills them.

Eve has a good life. She wakes up each day, kisses her husband Nate, and heads off to teach math at the local high school. All is as it should be. Except… Last year, Caseham High was rocked by a scandal involving a student-teacher affair, with one student, Addie, at its center. But Eve knows there is far more to these ugly rumors than meets the eye. Addie can’t be trusted. She lies. She hurts people. She destroys lives. At least, that’s what everyone says. But nobody knows the real Addie. Nobody knows the secrets that could destroy her. And Addie will do anything to keep it quiet…

Beth and Ian are desperate to have a child. So much so that they decide to sell his family cabin in upstate New York to pay for IVF. When they arrive at the cabin, they meet Ryan, the caretaker. But Ryan is not who he says he is… He’s here because he knows Beth has a dark secret. And now he intends to use it against her. He threatens to tell Ian everything about Beth's past unless she does exactly what he says.

Cassie thinks she has met the perfect man. Joel is sweet, handsome, romantic, and best of all, he’s crazy about Cassie. She thinks she’s found the guy she’ll spend the rest of her life with. Have children with. Grow old with. Yes, she knows about his perfect ex-girlfriend, Francesca. The beautiful, brilliant chef, beloved by all his friends. But she thinks Francesca is out of the picture. She thinks Francesca is gone for good. Think again, Cassie.

Fifty-two-year-old Michelle Banks is struggling to keep all the plates spinning. She’s a perimenopausal district nurse, caring for elderly parents. Her husband is wasting their money on children’s TV memorabilia, her teenage daughter is riddled with anxiety and her 16-year-old son is behaving secretively. Alexa is the only one who knows how much Michelle is juggling. Listening in via four smart speakers, she also knows that it’s about to get even worse. So, when Michelle pleads for help, Alexa decides to go rogue.

Lily Bradley is a respected psychotherapist married to a distinguished professor. They live in a dream house with their two children in close-knit Story Cove. Lily lives a well-ordered life. Or so it seems. As a therapist, she knows everyone keeps things hidden. Even her. Then sensual and free-spirited Arwen Harper rolls into town in her hand-painted VW van, her sixteen-year-old son riding shotgun. Overnight, Story Cove’s secrets are no longer safe. Because Arwen might know her new neighbors better than they know themselves.

It’s Christmas Eve and Stella Hansen is broke. She is so broke that despite working two jobs, she can’t even afford a present for her husband on their first Christmas as man and wife. But then a mysterious storekeeper at a pawn shop offers Stella an intriguing trade. Stella wants more than anything to buy her husband the Christmas gift of his dreams. But will it come at a terrible price?