The death of an elderly gentleman with a specialism in heraldry and genealogy propels Morse to the Blythe Mount School for Girls.

A housewife found choked to death in her own house marks the third strangling in a month, setting Oxford City Police on edge.

When a petty criminal absconds from an open prison, it sets off a chain reaction of troubling events, threatening to expose unspeakable horrors of the past.