Wilde believes he may be on the verge of discovering his true identity when a DNA match leads him to a close relative?the only family member he has ever known. Only this relationship goes away as swiftly as it appears. Unfazed, Wilde pursues his inquiry and finds himself drawn into a covert group dedicated to outing anonymous online trolls. People begin to die one by one after that, and it quickly becomes apparent that a serial murderer is picking off members of this hidden community.