Best friends on social media, Allysa and Morgan share a love of three things: thriller novels, true crime, and keeping secrets from each other. As soon as Allysa asks Morgan to be her plus one at a funeral, Morgan jumps on the first available flight. Burying the dead might unearth the truth about what happened to Allysa's brother twenty years earlier. She's never believed he simply left town without saying goodbye. Once they learn he's the last known victim of a serial killer, Allysa and Morgan decide to do what the police couldn't – bring him to justice. When the hunters become the hunted, only one question remains – Do you know your friend well enough to save her life?

Noa Morgan worked hard to put the past and Emily behind her. Not that she remembers much about the forty days she spent in captivity. When Noa realises she is being stalked, she knows it's him. Despite everything she's done, he's found her. And now he's killing innocent women, leaving an item at each crime scene still vivid in her memory. With the body count rising, Noa can no longer hide the truth from her new friends. Not if she wants to keep them alive. The worst part is ... that Emily died for nothing.