Ashurst and Scribbins investigate the murder of Gideon Finch, who was found burnt to death in his car. Having reportedly been having an affair with his neighbor, it soon transpires that his wife was having an affair with his brother, who has no alibi.

Ashurst and Scribbins investigate the murder of Helen McKee, who was the victim of a hit and run incident. A popular member of staff at a local comprehensive school, it is soon discovered she was having an affair with parents of potential new students.