Finlay Donovan, a single mother, mystery writer, and erstwhile contract killer (it was an accident!), thinks that things might finally be looking up. Sure, she's got writer's block again and a novel due, but her nanny and partner-in-crime, Vero, has invested the money from their last, uh, excursion outside the law, and Finlay has both a hot cop and a young lawyer vying for her affections. Then she stumbles across a message board where someone has put out a hit on her ex-husband. Finlay may not want a life with Stephen anymore, but she can't just sit by while someone takes his away. And so she finds herself once again venturing into a seedy underworld, dodging the Russian mob (and that hot, way-too-interested cop) as she poses as a hired assassin in an attempt to thwart actual attempts on Stephen's life. Cosimano builds on Finlay Donovan Is Killing It (2021) for another rollicking adventure in which the tribulations of single parenthood feel just as high stakes as the attempted murders. A sharp, slick sequel.- Booklist