Low Winter Sun is a two-part miniseries that first aired on Channel 4 in Great Britain, in 2006. It was aired in the United States by BBC America. The series, written by Simon Donald, stars Mark Strong as Detective Sergeant Frank Agnew, a police officer who murders a fellow officer and believes he has committed the perfect crime. The miniseries was adapted into a 10-episode series by AMC, with Strong reprising his role as Detective Agnew.^[1][2][3]

The story follows two corrupt police detectives, Frank Agnew and Joe Geddes, who kill a fellow detective, Brendan McCann, whom they believe is responsible for the murder of one of their colleagues. They stage the crime scene to make it look like a suicide, but soon their actions spiral out of control and they find themselves caught up in a web of deceit, betrayal, and murder.

As they investigate McCann's death, they become entangled in the criminal underworld of Detroit, and the line between right and wrong becomes increasingly blurred. Frank and Joe must constantly cover their tracks and avoid suspicion from their colleagues, including their boss, Lieutenant Dawson.

Meanwhile, a young and ambitious detective named Damon Callis is also investigating McCann's death, and his pursuit of the truth threatens to expose Frank and Joe's involvement.

Throughout the series, Frank and Joe's pasts come back to haunt them, and they are forced to confront the consequences of their actions. The series explores themes of morality, loyalty, and redemption, as the characters navigate the complex and dangerous world of law enforcement and organized crime.