When an innocent family is terrorised and their father murdered in cold blood, everyone knows that ruthless criminal Nick Mason is behind it. But when Mason, the "Teflon Man", walks free from his trial - the third time in five years he has evaded justice - Helen calls on Jack Quinn and his team for help.

A young girl is murdered in what is apparently an open and shut case, but Helen is convinced that all is not as it seems and calls on the help of Jack and his team to prove that an innocent man has been set up by a disgruntled former policeman, who will stop at nothing in his quest for vengeance.