Luther is a British crime drama TV series starring Idris Elba as DCI John Luther, a brilliant but troubled detective who often stretches police rules and regulations in pursuit of criminals. Luther struggles with personal demons following the breakdown of his marriage, which concerns his colleagues. Each episode features a new crime case that Luther must solve through psychological profiling of suspects and fast-paced action scenes. The series follows Luther's high-risk methods and his complex relationship with his allies and enemies over multiple seasons.