Allegra Hudson was murdered. An anonymous "source" drops the note into recently widowed Madeleine Barton's lap exactly when she needs it most. As a new single mother, she is struggling to make ends meet as a freelance reporter, and covering the mysterious death of local bestselling author Allegra Hudson could be the career-launching story of her dreams. Working with Allegra's grieving husband, Connor, Madeleine plunges down the rabbit hole of the writer's privileged life. The deeper she digs, the more dirt she finds: a conniving best friend, a stalker ex-boyfriend, and a marriage in shambles. The closer Madeleine gets to the truth, the murkier the waters become. Her source's looming presence and constant meddling in her investigation paired with her growing bond with Connor over their shared grief have blinded her to the facts, but nothing explains why Allegra Hudson's life feels so familiar. Only one thing is certain: Madeleine can trust no one. One Little Word is a deliciously clever game of cat-and-mouse with a completely unexpected twist.