Murder strikes close to home for the team when DCI Matt Burke's elderly father is found dead in suspicious circumstances. What appears to be a straightforward case of liver failure takes a sinister turn when it's discovered Andrew Burke died of a heroin overdose. Against police regulations, DCI Burke is determined to solve the case. But then some difficult questions arise - what is the significance of a two hundred thousand pound savings plan? And could Andrew's friends be in danger too? (thetvdb.com)