While visiting her mother, Angela ( Robyn Nevin ) Jane helps out at the local hospital after a fatal bus crash. The following day, the driver responsible for three deaths is murdered and Jane finds herself assisting the police in the hunt for a killer. Is it revenge or is there a more sinister motive?

Jane rushes back from New Zealand where she has been lecturing, for the funeral of her best friend, Dr. Lisa Hardman. Staying to help Lisa's husband with the children and to wind up Lisa's psychiatric practice, she discovers a patient who displays a dangerous obsession with Lisa's family. Jane begins to suspect that Lisa's death was not due to natural causes and when first she, then Lisa's husband, get sick, Jane realises that she is dealing with a serial poisoner.

Jane has been asked to assess a stalker and when she assures the judge that he is safe to be released, the husband of his victim is not pleased. When his wife is murdered and it is clear that the stalker is the murderer, Jane feels that she is to blame. However, when the Australian Secret Service (ASIO) are involved, there are more coincidences than a paranoiac can shake a stick at!!