Saffy Huntley-Oliver is an intelligent and glamorous socialite; she also happens to be a proficient serial killer. For the past fifteen years, she's hunted down and dispatched rapists, murderers, domestic abusers; bad men all. But leading a double life has left her lonely-dating's tough when your boyfriend might turn out to be your next victim. Saffy thinks she's finally found a truly good man in Jonathan Desrosiers, a true-crime podcaster who's amassed legions of die-hard fans for cracking cold cases and bringing justice to victims. When a decapitated body shows up on Jon's doorstep the morning after his wife leaves him, he becomes the chief suspect for a murder he insists he didn't commit. Saffy's crush becomes an obsession as she orchestrates a meet-cute and volunteers to help Jon clear his name, using every trick up her sleeve to find the real killer and get her man; no matter the cost. .