Emma Bishop works to both help and protect her investigative partner, Simon Archard, as they look into the connection between a dockman's death and a shipment of a mysterious narcotic powder, leading them to newcomer Miranda Cross.

After ex-partner Malcolm Lightbourne attempts to murder his current investigative partner, Emma Bishop, detective Simon Archard sets out to solve a number of new cases seemingly unrelated to Lightbourne, leaving Emma at a loss.