Finlay Donovan has been in messes before --- after all, she's an author and single mom who's a pro at getting out bloodstains for rather unexpected reasons --- but none quite like this. After she and her nanny/partner-in-crime Vero accidentally destroyed a luxury car that they may have "borrowed" in the process of saving the life of Finlay's ex-husband, the Russian mob got her out of debt. But now Finlay owes them. Still running the show from behind bars, mob boss Feliks has a task for Finlay: find a contract killer before the cops do. Problem is, the killer might be an officer. Luckily, hot cop Nick has started up a citizen's police academy, and combined pressure from Finlay's looming book deadline and Feliks is enough to convince Finlay and Vero to get involved.

Finlay Donovan is once again struggling to finish her next novel and keep her head above water as a single mother of two. On the bright side, she has her live-in nanny and confidant Vero to rely on, and the only dead body she's dealt with lately is that of her daughter's pet goldfish. On the not-so-bright side, someone out there wants her ex-husband, Steven, out of the picture. Permanently. Whatever else Steven may be, he's a good father, but saving him will send her down a rabbit hole of hit-women disguised as soccer moms, and a little bit more involvement with the Russian mob than she'd like. Meanwhile, Vero is keeping secrets, and Detective Nick Anthony seems determined to get back into her life.

Finlay Donovan is a stressed-out single mom of two and struggling novelist. The new book she promised her literary agent isn’t written, her ex-husband fired the nanny without telling her, and this morning she had to send her four-year-old to school with hair duct-taped to her head after an incident with scissors. When Finlay is overheard discussing the plot of her new suspense novel with her agent over lunch, she is mistaken for a contract killer and inadvertently accepts an offer to dispose of a problem husband in order to make ends meet. Soon, Finlay discovers that crime in real life is a lot more difficult than its fictional counterpart, as she becomes tangled in a real-life murder investigation.