In the second episode of Luther Season 3, DCI John Luther investigates a series of "copycat" murders while dealing with an internal affairs investigation designed to bring him down.
In a pivotal moment, Luther listens to Ripley’s recorded statement and realizes his partner defended him despite the pressure from IA. Luther 3x2
Luther enters Stark’s lair, swipes his own file, and warns Stark that he will "take him down harder and faster" if Stark persists. In the second episode of Luther Season 3,
Luther’s chilling interview with William Carney reveals the killer's motives and the connection to the cold case. swipes his own file
Luther corners Paul Ellis, who ultimately flings himself through a window rather than being captured. "Luther" Episode #3.2 (TV Episode 2013) - IMDb