Detective James Calloway is the city's best hope-and its last defense-against a killer whose crimes are as personal as they are brutal. Each murder leaves behind a chilling message and a city gripped by fear. As the investigation spirals, James's relentless pursuit of justice threatens to unravel his marriage, his reputation, and his very sense of self. With the killer always one step ahead, and the line between hunter and hunted blurring, James must confront the darkness within and around him. In a city desperate for answers, can he stop the murderer before he loses everything? Dennis is a riveting psychological thriller about obsession, justice, and the cost of facing the abyss-where sometimes, the greatest danger lies within.