Newly minted San Francisco police detective Manhattan Sloane lets no one get close. Especially lovers. Sloane has her reasons for keeping the world at arm's length. But then her first childhood crush, DEA Agent Finn Harper, reappears and changes everything. Harper has arrived in San Francisco to investigate a new street drug weaving its way into the city - a drug that has personal ties for Sloane. The two find themselves thrown together as they team up to take down a ruthless cartel lord. Soon, sparks fly as old feelings surface.

Parker Chase is everyone's friend and every woman's conquest. She's always looking for her next one-night companion until a statuesque blonde strolls up to her bar one night. She never believed in love at first sight before now, but can she overcome a troublesome past that leaves her feeling unworthy of any lasting affection?

Muffin maker Olivia Roberts has had it with her awful exes taking advantage of her good nature. The theft of her nana's beloved stuffed penguin is the absolute last straw. She puts up an ad at her local crime bookstore for a henchperson to help her enact a little mild revenge. To her astonishment, Margaret Blackwood, the mysterious, icy, and annoyingly opinionated bookstore owner, applies.

Alexandra Castle hides the brightest part of herself. She is the perfect daughter and heir-apparent to the Castle Resort empire. To her controlling father, her only fault is that she's gay, so she keeps her sexuality out of the public eye for his benefit. With his retirement on the horizon, he pits Alex against her corner-cutting twin brother in a high-stakes competition to choose who will take over the company. Just when she takes the lead, an ex-lover reappears, threatening to destroy her life.

It's been five years since Charlotte Donovan was ditched at the altar by her ex-fiancée, and she’s doing more than okay. Sure, her single mother never checks in, but she has her strings ensemble, the Rosalind Quartet, and her life in New York is a dream come true. As the holidays draw near, her ensemble mate Sloane persuades Charlotte and the rest of the quartet to spend Christmas with her family in Colorado. But when Charlotte arrives, she discovers that Sloane’s sister Adele also brought a friend home—and that friend is none other than her ex, Brighton.