They came to heal. One of them came to hunt. Seven survivors of violent crime meet every Thursday in a church basement in Portland, Oregon. They call themselves The Circle. They have one rule: what is shared in the room stays in the room. For seven months, they have traded their darkest confessions - the freezing, the hiding, the hesitation, the shame of what they did or failed to do in the moments that nearly destroyed them. Then the members start dying. Not randomly. Not violently. Precisely. Each death mirrors the victim's original trauma with a specificity that can only mean one thing: the killer knows exactly what was said in that room. The killer knows the parking garage where Tom sleeps. The killer knows the supply cart where Priya hides. The killer knows which lock to change on Margot's door. The killer is one of them. Detective Christine DeLuca has been attending The Circle under a false name, seeking help for a case that shattered her - a home invasion where she arrived sixty seconds too late to save two children. She has told the group she works in city administration. She has told no one she carries a badge. Now, as the members are murdered one by one using the intimate details they shared in trust, Christine must investigate a crime rooted in the room where she is both detective and suspect, both hunter and prey. But the closer she gets to the truth, the more she realizes: in a room where everyone is lying about something, the killer's greatest disguise isn't a false identity. It's genuine empathy. The Circle of Secrets is a novel about what happens when the act of healing becomes the mechanism of destruction - when the person who understands your suffering best is the person who intends to use it against you. For readers of Alex Michaelides's The Silent Patient, Freida McFadden's The Housemaid, and Lisa Jewell's None of This Is True.