DCI Banks is based on the successful detective novel written by crime writer Peter Robinson. The series stars Stephen Tompkinson as DCI Banks. Two young policemen are sent to a house following a report of a domestic disturbance and they end up discovering a horrific scene. DCI Alan Banks ends up being pushed to the absolute limits in the case after the identity of a serial killer has finally been revealed. His capture though is only the beginning of a shocking investigation. / The first series was known by the title DCI Banks: Aftermath. The second series saw the detective investigating more cases.