Fern Brookbanks has wasted far too much of her adult life thinking about Will Baxter. She spent just twenty-four hours in her early twenties with the aggravatingly attractive, idealistic artist, a chance encounter that spiraled into a daylong adventure in the city. The timing was wrong, but their connection was undeniable: they shared every secret, every dream, and made a pact to meet one year later. Fern showed up. Will didn’t.

Macy Sorensen is settling into an ambitious if emotionally tepid routine: work hard as a new pediatrics resident, plan her wedding to an older, financially secure man, keep her head down and heart tucked away. But when she runs into Elliot Petropoulos - the first and only love of her life - the careful bubble she’s constructed begins to dissolve.

Naomi wasn’t just running away from her wedding. She was riding to the rescue of her twin. Too bad for Naomi, her evil twin hasn’t changed at all. After helping herself to Naomi’s car and cash, Tina leaves her with a niece she didn’t know she had. Now, she’s stuck in town with no car, no job, no home - and an 11-year-old to take care of. Since Naomi’s life imploded right in front of him, the least Knox can do is help her out. And just as soon as she's out of trouble, he can get back to his peaceful, solitary life. That’s the plan, until the trouble turns to real danger.

Poppy and Alex. Alex and Poppy. They have nothing in common. She’s a wild child; he wears khakis. She has insatiable wanderlust; he prefers to stay home with a book. And somehow, ever since a fateful car share home from college many years ago, they are the very best of friends. For most of the year they live far apart—she’s in New York City, and he’s in their small hometown—but every summer, for a decade, they have taken one glorious week of vacation together.

Harriet and Wyn have been the perfect couple since they met in college—they go together like salt and pepper, honey and tea, lobster and rolls. Except, now—for reasons they’re still not discussing—they don’t. They broke up five months ago. And still haven’t told their best friends.

Fallon meets Ben, an aspiring novelist, the day before her scheduled cross-country move. Their untimely attraction leads them to spend Fallon's last day in LA together, and her eventful life becomes the creative inspiration Ben has always sought for his novel. Over time and amidst the various relationships and tribulations of their own separate lives, they continue to meet on the same date every year.

Nora Stephens' life is books—she’s read them all—and she is not that type of heroine. Not the plucky one, not the laidback dream girl, and especially not the sweetheart. In fact, the only people Nora is a heroine for are her clients, for whom she lands enormous deals as a cutthroat literary agent, and her beloved little sister Libby.

Malibu: August 1983. It’s the day of Nina Riva’s annual end-of-summer party, and anticipation is at a fever pitch. Everyone wants to be around the famous Rivas: Nina, the talented surfer and supermodel; brothers Jay and Hud, one a championship surfer, the other a renowned photographer; and their adored baby sister, Kit. Together the siblings are a source of fascination in Malibu and the world over—especially as the offspring of the legendary singer Mick Riva. The only person not looking forward to the party of the year is Nina herself.

When Tate Collins meets airline pilot Miles Archer, she doesn't think it's love at first sight. They wouldn’t even go so far as to consider themselves friends. The only thing Tate and Miles have in common is an undeniable mutual attraction. Once their desires are out in the open, they realize they have the perfect set-up. He doesn’t want love, she doesn’t have time for love, so that just leaves the sex. Their arrangement could be surprisingly seamless, as long as Tate can stick to the only two rules Miles has for her.

Sloan will go through hell and back for those she loves. And she does so, every single day. Caught up with the alluring Asa Jackson, a notorious drug trafficker, Sloan has finally found a lifeline to cling to, even if it’s meant compromising her morals. She was in dire straits trying to pay for her brother’s care until she met Asa. But as Sloan became emotionally and economically reliant on him, he in turn developed a disturbing obsession with her—one that becomes increasingly dangerous every day.

In her twenties, Emma Blair marries her high school sweetheart, Jesse. They build a life for themselves, far away from the expectations of their parents and the people of their hometown in Massachusetts. They travel the world together, living life to the fullest and seizing every opportunity for adventure. On their first wedding anniversary, Jesse is on a helicopter over the Pacific when it goes missing. Just like that, Jesse is gone forever.

Samson and Beyah have nothing in common on the surface. She comes from a life of poverty and neglect; he comes from a family of wealth and privilege. But one thing they do have in common is that they're both drawn to sad things. Which means they're drawn to each other. Beyah and Samson agree to stay in the shallow end of a summer fling. What Beyah doesn't realize is that a rip current is coming, and it's about to drag her heart out to sea.

After fleeing an abusive husband with her six-year-old son, Tommie, Beverly is attempting to create a new life for them in a small town off the beaten track. Despite their newfound freedom, Beverly is constantly on guard: she creates a fake backstory, wears a disguise around town, and buries herself in DIY projects to stave off anxiety. But her stress only rises when Tommie insists he’d been hearing someone walking on the roof and calling his name late at night.

Sam’s life is on track. She has the perfect doctor fiancé, Jack (his strict routines are a good thing, really), a great job in Manhattan (unless they fire her), and is about to tour a wedding venue near her family’s Long Island beach house. Everything should go to plan, yet the minute she arrives, Sam senses something is off. Wyatt is here. Her Wyatt. But there’s no reason for a thirty-year-old engaged woman to feel panicked around the guy who broke her heart when she was seventeen. Right?

Dannie Kohan lives her life by the numbers. She is nothing like her lifelong best friend - the wild, whimsical, believes-in-fate Bella. Her meticulous planning seems to have paid off after she nails the most important job interview of her career and accepts her boyfriend’s marriage proposal in one fell swoop, falling asleep completely content. But when she awakens, she’s suddenly in a different apartment, with a different ring on her finger, and beside a very different man.

Fern Brookbanks has wasted far too much of her adult life thinking about Will Baxter. She spent just twenty-four hours in her early twenties with the aggravatingly attractive, idealistic artist, a chance encounter that spiraled into a daylong adventure in the city. The timing was wrong, but their connection was undeniable: they shared every secret, every dream, and made a pact to meet one year later. Fern showed up. Will didn’t.

Lucy is the tourist vacationing at a beach house on Prince Edward Island. Felix is the local who shows her a very good time. The only problem: Lucy doesn’t know he’s her best friend’s younger brother. Lucy and Felix’s chemistry is unreal, but the list of reasons why they need to stay away from each other is long, and they vow to never repeat that electric night again. It’s easier said than done.

Good things happen at the lake. That’s what Alice’s grandmother says, and it’s true. Alice spent just one summer there at a cottage with Nan when she was seventeen—it’s where she took that photo, the one of three grinning teenagers in a yellow speedboat, the image that changed her life. Now Alice lives behind a lens. As a photographer, she’s most comfortable on the sidelines, letting other people shine. Lately though, she’s been itching for something more, and when Nan falls and breaks her hip, Alice comes up with a plan for them both: another summer in that magical place, Barry’s Bay.

Macy Sorensen is settling into an ambitious if emotionally tepid routine: work hard as a new pediatrics resident, plan her wedding to an older, financially secure man, keep her head down and heart tucked away. But when she runs into Elliot Petropoulos - the first and only love of her life - the careful bubble she’s constructed begins to dissolve.

Dannie Kohan lives her life by the numbers. She is nothing like her lifelong best friend - the wild, whimsical, believes-in-fate Bella. Her meticulous planning seems to have paid off after she nails the most important job interview of her career and accepts her boyfriend’s marriage proposal in one fell swoop, falling asleep completely content. But when she awakens, she’s suddenly in a different apartment, with a different ring on her finger, and beside a very different man.

Katie Vaughn has been burned by love in the past—now she may be lighting her career on fire. She has two choices: wait to get laid off from her job as a video producer or, at her coworker Cole’s request, take a career-making gig profiling Tom “Hutch” Hutcheson, a Coast Guard rescue swimmer in Key West. The catch? Katie’s not exactly qualified. She can’t swim—but pretends that she can. Plus, Cole and Hutch are brothers. And they don’t get along. Next stop: paradise!

Augustus Everett is an acclaimed author of literary fiction. January Andrews writes best-selling romance. When she pens a happily ever after, he kills off his entire cast. They’re polar opposites. In fact, the only thing they have in common is that for the next three months, they're living in neighboring beach houses, broke, and bogged down with writer's block.

When Katy’s mother dies, she is left reeling. Carol wasn’t just Katy’s mom, but her best friend and first phone call. She had all the answers and now, when Katy needs her the most, she is gone. To make matters worse, their planned mother-daughter trip of a lifetime looms: to Positano, the magical town where Carol spent the summer right before she met Katy’s father. Katy has been waiting years for Carol to take her, and now she is faced with embarking on the adventure alone.

Poppy and Alex. Alex and Poppy. They have nothing in common. She’s a wild child; he wears khakis. She has insatiable wanderlust; he prefers to stay home with a book. And somehow, ever since a fateful car share home from college many years ago, they are the very best of friends. For most of the year they live far apart—she’s in New York City, and he’s in their small hometown—but every summer, for a decade, they have taken one glorious week of vacation together.

Justin has a curse, and thanks to a Reddit thread, it's now all over the internet. Every woman he dates goes on to find their soul mate the second they break up. When a woman slides into his DMs with the same problem, they come up with a plan: They'll date each other and break up. Their curses will cancel each other’s out, and they’ll both go on to find the love of their lives. It’s a bonkers idea… and it just might work.

Nora Stephens' life is books—she’s read them all—and she is not that type of heroine. Not the plucky one, not the laidback dream girl, and especially not the sweetheart. In fact, the only people Nora is a heroine for are her clients, for whom she lands enormous deals as a cutthroat literary agent, and her beloved little sister Libby.

Eighteen years of summers spent in a beach house in Ogunquit, Maine, have brought Violet Mitchell and Will Seaberg together. For two perfect, beach-filled months every year, they spent every waking minute together. First as friends, until one summer changed everything. But before the two even had a chance to claim the love they’d spent their entire lives creating, disaster struck, tearing the two lovers—and their families—apart.

Emma loves her husband Leo and their young daughter Ruby: she’d do anything for them. But almost everything she's told them about herself is a lie. And she might just have got away with it, if it weren’t for her husband’s job. Leo is an obituary writer; Emma a well-known marine biologist. When she suffers a serious illness, Leo copes by doing what he knows best – researching and writing about his wife’s life. But as he starts to unravel the truth, he discovers the woman he loves doesn’t really exist. Even her name isn’t real.

Ali Morris is a professional organizer whose own life is a mess. Her mom died two years ago, then her husband left, and she hasn’t worn pants with a zipper in longer than she cares to remember. No one is more surprised than Ali when the first time she takes off her wedding ring and puts on pants with hardware—overalls count, right?—she meets someone. Or rather, her dog claims a man for her, in the same way he claimed his favorite of her three children: by peeing on him. Ethan smiles at Ali like her pants are just right—like he likes what he sees.

Anna Green thought she was marrying Liam “West” Weston for access to subsidized family housing while at UCLA. She also thought she’d signed divorce papers when the graduation caps were tossed, and they both went on their merry ways. Three years later, Anna is a starving artist living paycheck to paycheck while West is a Stanford professor. He may be one of four heirs to the Weston Foods conglomerate, but he has little interest in working for the heartless corporation his family built from the ground up. He is interested, however, in his one-hundred-million-dollar inheritance.