  Sociopath.....a person with a psychopathic personality whose behavior is antisocial, often criminal, and who lacks a sense of moral responsibility or social conscience.  Hold onto your hats!!!  DI Kim Stone is back..... along side her partner DS Bryant she is called out to arrest a very unsavoury character Leonard Dunn and bring him to justice for his terrible crime.  But Kim Stone is not leaving it there, oh no she still thinks others must of been involved so she wi