Mara, Sadie e Hannah são três grandes amigas e cientistas tentando equilibrar razão e emoção. Embora seus campos de estudo as tenham levado para diferentes partes do mundo, todas elas concordam com uma verdade universal: quando se trata de amor e ciência, os opostos se atraem e algumas misturas podem ser perigosas…

Catalina Martín é uma jovem espanhola que trabalha como engenheira em Nova York. Com o casamento da irmã se aproximando, ela precisa desesperadamente de um acompanhante, porque não quer encarar sozinha toda a família e, principalmente, o irmão do noivo, que é ninguém menos do que seu ex. Sentindo-se pressionada, ela conta uma mentirinha inofensiva sobre ter um namorado americano. E agora todos em sua pequena cidade estão ansiosos para conhecê-lo.

A carreira de Bee Königswasser está indo de mal a pior. Quando surge um processo seletivo para liderar um projeto de neuroengenharia da Nasa, ela se faz a pergunta que sempre guiou sua vida: o que Marie Curie faria? Participaria, é claro. Depois de conquistar a vaga, Bee descobre que precisará trabalhar com Levi Ward–um desafio que a mãe da física moderna nunca precisou enfrentar.

Olive Smith, aluna do doutorado em Biologia da Universidade Stanford, acredita na ciência–não em algo incontrolável como o amor. Depois de sair algumas vezes com Jeremy, ela percebe que sua melhor amiga gosta dele e decide juntá-los. Para mostrar que está feliz com essa escolha, Olive precisa ser convincente: afinal, cientistas exigem provas. Sem muitas opções, ela resolve inventar um namoro de mentira e, num momento de pânico, beija o primeiro homem que vê pela frente.

After a wild bet, gourmet grilled-cheese sandwich, and cuddle with a baby goat, Alexis Montgomery has had her world turned upside down. The cause: Daniel Grant, a ridiculously hot carpenter who’s ten years younger than her and as casual as they come—the complete opposite of sophisticated city-girl Alexis. And yet their chemistry is undeniable.

It’s Valentine’s Day weekend, and Charlotte and Seth are not looking for romance. Armed with emotional-support bear spray, Charlotte is in self-imposed isolation and on guard from men. Having a stalker can do that to a person’s nerves. Just across the hall and giving off woodsy vibes is Seth, a recently divorced arborist. As in today recently. Heights, he’s fine with. Trust? Not so much.

Lana Fleming’s sister has vanished from the set of TV’s hottest show, and no one seems to care. Desperate for answers, Lana sneaks in as an extra, only to get stranded with Griffin Hart, an A-list action star with a reputation for good abs and bad decisions. Though Griffin didn’t expect to be cast as a librarian’s sidekick in a real-life thriller, he’s weirdly into it—and into her. Even more unsettling—she sees right through his playboy persona. But their meet-cute soon turns deadly when they uncover a Hollywood scandal for the ages.

Lowen Ashleigh is a struggling writer on the brink of financial ruin when she accepts the job offer of a lifetime. Jeremy Crawford, husband of best-selling author Verity Crawford, has hired Lowen to complete the remaining books in a successful series his injured wife is unable to finish. Lowen arrives at the Crawford home, ready to sort through years of Verity's notes and outlines, hoping to find enough material to get her started. What Lowen doesn't expect to uncover in the chaotic office is an unfinished autobiography Verity never intended for anyone to read.

Liv’s happy with life in her thirties. She has two cats, one BFF, and no boyfriend, which is just how she likes it. Plus, she loves working at a not-for-profit software company where she can be her authentically autistic self. This is her happy ever after. But when her beloved firm merges with a repulsive rival, Liv finds herself competing with her sort-of-ex for the top job. Sure, Finn had been Liv’s best friend, with his nerdy good looks and their shared love of Tolkien, but there was that one night, their song, and … well, she doesn’t like to talk about it.

Meet Randi Burnett—she’s brilliant, she’s beautiful, and she works for the bride. Missing groom? Intoxicated in-laws? Crying ring-bearer? You name it, she wrangles it. Too bad her personal life isn’t thriving like her side gig as a bridesmaid for hire. Recently dumped, Randi throws herself into her biggest challenge yet when she’s hired as a maid of honor and pretend best friend for an ice queen bride. There’s just one problem—the best man is infuriating, overprotective, and anti-marriage.