A savage crime has rocked a working-class neighbourhood of Boston; four members of a family have been brutally murdered. The father is lying in an intensive care unit, his survival in doubt. He is the principal suspect.

Female police detective D.D. Warren, however, is not one to take things at face value. At the same time, Danielle Burton is about to have her life thrown into turmoil; a nurse whose life is at the service of her profession, she has tentatively recovered from a devastating family tragedy of decades before – and the investigation by Warren and her partner is about to throw Danielle’s life into chaos once again. There is one more angle to the triangle: the devotion of a mother, Victoria Oliver, to her disturbed son is about to be tested to the limit.