Murphy's Law - Season 2 (2004)

DS Tommy Murphy goes undercover at a defense biotechnology contractor that may be covering up an industrial accident. Specifically, a young child is found to have drowned but the mother believes he died as a result of a chemical agent in the pond near where the child was playing. Despite being warned off the case, the police decide to leave Murphy in place. When the family who helped the dead boy and his mother is executed, it is apparent that someone will stop at nothing to keep these secrets hidden.

DS Tommy Murphy goes undercover in a convent when a young nun apparently commits suicide and a second vanishes. Posing as a priest, he finds any number of suspects. The older nuns obviously have a secret and are in league with a pharmaceutical firm. Murphy suspects they may be participating in illegal or unauthorized drug trials in their African mission. There is a young African novice who has regular nightmares and is clearly afraid of something. Then there is the gardener/handyman who also has secrets. When the missing nun is found dead, the police must move quickly...

DS Tommy Murphy finds himself before a disciplinary review board after having shot a suspect during an arrest and soon out of the force completely. He approaches a psychologist, Mark Maddison, who runs a support group for individuals who have have lost someone to a violent crime but where the perpetrator is known but has never been convicted of the crime. In fact, Murphy is undercover as at least three murder suspects have been killed and all had some connection to a member of Maddison's group. Murphy is genuinely torn however when the group provides him with the name...