Wealthy Sunny von Bülow lies brain-dead, husband Claus guilty of attempted murder; but he says he's innocent and hires Alan Dershowitz for his appeal.
Keen young Raymold Avila joins the Internal Affairs Department of the Los Angeles police. He and partner Amy Wallace are soon looking closely at the activities of cop Dennis Peck whose financial holdings start to suggest something shady. Indeed Peck is involved in any number of dubious or downright criminal activities. He is also devious, a womaniser, and a clever manipulator, and he starts to turn his attention on Avila.
Inspired by the 1982 Roberto Calvi Affair in which an Italian banker was found hanging from a bridge across the River Thames, the story follows Alan, a man from Northern England who is homeless after the loss of his wife and job. One night while sleeping in a deserted building, Alan witnesses the murder of a high-profile businessman. He attempts to leave the scene unnoticed, but the killers realize that someone has seen them commit the crime. He goes to the police only to discover that one of the killers is leading the case. To stay alive, Alan recruits the help of Billie Hayman, an American journalist, to cover his story.
A corrupt cop gets in over his head when he tries to assassinate a beautiful Russian hit-woman.