Avery Knox has the ideal life - the perfect house, the perfect career, and the perfect husband. Still hopelessly in love after decades of marriage, she and Grady are the envy of everyone around them. But when Grady unexpectedly passes away, Avery's perfect world is shattered.In the wake of Grady's death, Avery does her best to pick up the pieces and move on with her life. But after eighteen months, it's clear that the only way to move forward is to stop living in the past. Eager for a fresh start, Avery makes the gut-wrenching decision to pack up and move out of the home she and Grady spent decades building their perfect memories.Within an hour of moving into her new home, she meets two people who will change the trajectory of her Callum, the mysterious, gorgeous next-door neighbor whose presence alone leaves Avery tongue-tied; and Mettie, the spunky, southern spit-fire neighbor across the street who makes Avery feel alive again for the first time since Grady's death.But just as she's settling into her new life, Avery's world comes crashing down around her, again. Her newfound happiness soon turns into a nightmare that she can't wake up from. It comes to light that everything she believed to be true about her marriage - everything she thought she knew about her husband - was a lie. It turns out, there's no such thing as perfect.Was Grady's death a tragic accident, or cold blooded murder?- Someone has been watching her.- Someone will betray her.- Someone wants her dead.The question is... who?