Injustice is a psychological thriller serial broadcast on ITV1 written by Anthony Horowitz. This series attempts to tackle the universal question which is at the heart of every country's legal system. How does a defence barrister live with himself if he finds out that the person he is defending is really guilty of the crime they are accused of. William Travers finds himself becoming involved with a case that involves a friend called Martin Newall who is facing conspiracy and murder charges. At the same time he is being investigated by a vengeful detective called Mark Wenborn.