Belly measures her life in summers. Everything good, everything magical happens between the months of June and August. Winters are simply a time to count the weeks until the next summer, a place away from the beach house, away from Susannah, and most importantly, away from Jeremiah and Conrad. They are the boys that Belly has known since her very first summer—they have been her brother figures, her crushes, and everything in between. But one summer, one wonderful and terrible summer, the more everything changes, the more it all ends up just the way it should have been all along.

Jackie does not like surprises. Chaos is the enemy! The best way to get her successful, busy parents to notice her is to be perfect. The perfect look, the perfect grades—the perfect daughter. And then Jackie's family dies in a freak car accident and she has to move cross-country to live with the Walters—her new guardians. Now Jackie must trade in her Type A personality and New York City apartment for a Colorado ranch and all the wild Walter boys who come with it. How can she fit in and move on when she needs to keep her parents' memory alive by living up to the promise of perfect?

Sixteen-year-old Lara Jean Song keeps her love letters in a hatbox her mother gave her. They aren’t love letters that anyone else wrote for her; these are ones she’s written. One for every boy she’s ever loved - five in all. When she writes, she pours out her heart and soul and says all the things she would never say in real life, because her letters are for her eyes only. Until the day her secret letters are mailed, and suddenly, Lara Jean’s love life goes from imaginary to out of control.

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.

Nineteen-year-old Signa Farrow, orphaned as a baby, has been raised by a string of guardians, each more interested in her wealth than her well-being—and each has met an untimely end. Her last remaining relatives are the Hawthornes, an eccentric family living at the glittering and gloomy estate of Thorn Grove. Thorn Grove’s patriarch, Elijah, mourns his late wife, Lillian, through wild parties and drink, while eldest son Percy grapples for control of the family’s waning reputation and daughter Blythe suffers from the same mysterious illness that killed her mother.