Crime drama series starring Idris Elba as Luther, a near-genius murder detective whose brilliant mind can't always save him, the innocent and the guilty. On a moral crusade, with only his convictions for company, John Luther is a troubled man, a philosophical cop possessed by the insoluble problem of evil and justice in a Godless world. Confronting depravity in its many terrible forms, over a succession of psychological duels between hunter and hunted, perpetrator and prey, Luther reveals his capacity for violence as well as kindness; his sudden vulnerability and dizzying, visionary mind.