When Nicole is called to the horrific murder of a young woman in a remote industrial area, she's forced to examine the way she views crime and criminals. Forensic tests reveal Diane Swift was raped, tortured, and set on fire with petrol. The horror of the murder leads Nicole into a relationship with the woman's best friend as she strives to understand the reasons behind the killing. Nicole's empathy deepens when she's asked to imitate Diane for a re-enactment of her last known movements in an attempt to generate badly needed leads.