Mark's old boxing coach, an alcoholic, is found at the scene of a serious assault, and nobody seems prepared to entertain the theory that he might just be innocent. Mark battles to prove that he has been falsely accused, assisted by the rest of the team, and in the process wins the affections of his law school teacher.

An ex-policeman murders his wife, and sets up a complicated false trail and apparently flawless alibi in order to cover his tracks. The Chief has to find a way to crack the man's seemingly perfect defence, in order to prove that he is guilty.