Two neighbors-at-war band together to stop a dangerous criminal in their midst in this enthralling new novel from the USA Today bestselling author of The Lost Ticket. Twenty-five-year-old Kat Bennett has never felt at home anywhere, and especially not in crumbling Shelley House. According to her neighbors, she’s prickly and unapproachable, but beneath her tough exterior, Kat is plagued by guilt from her past. Seventy-seven-year-old Dorothy Darling is Shelley House’s longest resident, and if you believe the other tenants, she’s as cantankerous and vindictive as they come. Except there’s a good reason Dorothy spends her days spying on her neighbors—a closely guarded secret that no else knows and the reason Dorothy barely leaves her beloved home. When their building faces demolition, sworn enemies Kat and Dorothy become unlikely allies in their quest to save their historic home. But when someone starts to play dirty and viciously targets one of the residents, Dorothy and Kat suspect foul play in their community. After the police close the investigation, it's up to this improbable pair to bring a criminal to justice.