Mara, Sadie, and Hannah are friends first, scientists always. Though their fields of study might take them to different corners of the world, they can all agree on this universal truth: When it comes to love and science, opposites attract and rivals make you burn….

Viola Bowen has the chance of a lifetime: to design a video game based on her all-time favorite book series. The only problem? Her co-lead is Jesse F-ing Andrews, a.k.a. her arch-nemesis. Jesse has made it abundantly clear over the years that he wants nothing to do with her–and Viola has no idea why. When their bosses insist a wintery retreat is the perfect team-building exercise, Viola can’t think of anything worse. Being freezing cold in a remote mountain lodge knowing Jesse is right next door? No, thank you.

Chandler Cohen has never felt more like the ghost in "ghostwriter" until she attends a signing for a book she wrote—and the author doesn’t even recognize her. The evening turns more promising when she meets a charming man at the bar and immediately connects with him. But when all their sexual tension culminates in a spectacularly awkward hookup, she decides this is one night better off forgotten. Unfortunately, that’s easier said than done.

Like an avenging, purple-haired Jedi bringing balance to the mansplained universe, Bee Königswasser lives by a simple code: What would Marie Curie do? If NASA offered her the lead on a neuroengineering project—a literal dream come true after years scraping by on the crumbs of academia—Marie would accept without hesitation. Duh. But the mother of modern physics never had to co-lead with Levi Ward.

All newly minted pediatrician Jamie Malek wants is to borrow a roasting pan for Christmas dinner. Unfortunately, that requires her to interact with Marc—her best friend’s troublemaking brother, who’s now a tech billionaire. He’s the one who got away. She’s the one who broke his heart. Outside, a howling blizzard. Inside, a crackling fire. Suddenly, being snowbound with the man she never expected to see again might not be such a bad way to spend a winter’s night.

Aurora De La Torre, or Ora to her friends, knows moving back to Pagosa Springs, Colorado, a place that was once home and is now full of bittersweet memories of her late mother, isn’t going to be easy. Starting your whole life over probably isn’t supposed to be. But after breaking up with her longtime famous musician boyfriend, hiding out in a small town in the mountains might be the perfect remedy for a broken heart. And checking out her landlord who lives across the driveway just might cure it, too. Only Tobias Rhodes didn’t rent out the apartment to her, rather it was his teenage son, Amos.

In her teenage years, lovelorn Jessica Gold cast a spell that went disastrously wrong, and brought her all the wrong kind of attention—as well as a lifetime ban from the World Council of Witches. So no one is more surprised than Jess when, fifteen years later, tall, handsome WCW member Derrick Winters shows up in her quaint little village of West Harbor and claims that Jess is the Chosen One.

Noah and Mia have always been best friends, and their friendship is the most important thing to them. Life is going great for Noah and he’s up for a promotion in a job he loves. But Mia’s life is on hold as she awaits a kidney transplant. She’s stuck in a dead-end job and, never wanting to be a burden, has sworn off all romance. So when the chance of a lifetime comes to go back to school and pursue her dream, it’s especially painful to pass up. She can’t quit her job or she’ll lose the medical insurance she so desperately needs.

When Lila Macapagal moves back home to recover from a horrible breakup, her life seems to be following all the typical rom-com tropes. She's tasked with saving her Tita Rosie's failing restaurant, and she has to deal with a group of matchmaking aunties who shower her with love and judgment. But when a notoriously nasty food critic (who happens to be her ex-boyfriend) drops dead moments after a confrontation with Lila, her life quickly swerves from a Nora Ephron romp to an Agatha Christie case.

Stella Lane thinks math is the only thing that unites the universe. She comes up with algorithms to predict customer purchases - a job that has given her more money than she knows what to do with as well as way less experience in the dating department than the average 30-year-old. It doesn't help that she has Asperger's and that French kissing reminds her of a shark getting its teeth cleaned by pilot fish. She decides that she needs lots of practice - with a professional - which is why she hires escort Michael Phan.