A young woman is found one evening on a residential street in critical condition. Her subsequent death remains a mystery; the only key to what happened is an assistive device found on her. Mara McEdwards, a third generation detective, is assigned to the case. In no time, she is swept into a new world she has never heard of. A world where communication is silent and challenges await her. At the same time Mara struggles to search for clues, an explosive campaign of terror grips the heart of the cochlear implant industry. Mara McEdwards finds herself in a desperate race against time to catch the suspects, a ruthless psychopath and a sinister terrorist. Her mission comes to a climactic and shocking conclusion.