A judge plans to get away with murder - he kills his mistress and then presides over the trial over the innocent man suspected of the crime. Unfortunately for the judge, Ben Matlock is the young man's attorney, but will Matlock risk his friendship with the judge for justice to prevail?
Alex Winthrop, an old protege of Matlock's, asks for his help in defending the British ambassador to the U.S. The man stands accused of murdering his mistress' husband, and he has chosen to waive his diplomatic immunity and stand trial. Matlock travels to the Big Apple to take the case.