Grace believes that Julie, the Geigers' babysitter when their son Andrew died, deliberately killed Andrew and exposed her daughter to radiation to gain sympathy for herself as she has a psychological condition which craves attention. This is confirmed when Una, a nurse at the hospital when Andrew died, tells Boyd that she had her suspicions and told her boyfriend Glenn Burke. Burke, however, put the Geigers up to haunting the Rees family to blackmail Donald into giving them money and killed the old couple when they decided to give it back. Una has survived an attempt to kill her by Burke, who torched the Geigers' house to destroy evidence linking them with him but Burke is then killed by Julie when he breaks into her house. The team are left with the possibility that Julie is not ill after all but that this is another attention-seeking ploy. If so, did she kill Donald when he found out what she had done?
don @ minifie-1