Narc (2002)

Haunted by a past trauma, Narcotics Sergeant Nick Tellis returns from leave to untangle a web of deceit surrounding an operative's murder. Paired with Henry Oak, the victim’s volatile former partner, Tellis navigates Detroit's underbelly, where shadows conceal dangerous truths. Their investigation unearths shocking secrets, forcing them to confront departmental corruption and question the morality of their colleagues. As they delve deeper, unorthodox methods become commonplace, revealing a brutal truth about Calvess's demise that neither man anticipated. Their pursuit of justice will test their limits and shatter their perceptions.