Morse investigates the murder of Trevor Radford, managing director of the family-owned Radford's Brewery, who was attacked and killed while working late. Morse becomes immersed in the implications of a hostile take-over bid by another company. Then Helen Radford goes to the brewery to look for her missing husband Stephen and finds him also murdered.

Business tycoon Sir John Balcombe is found murdered at his country house, Balcombe Castle, with no signs of a break-in. As a result, the dead man's wife and sons come under suspicion. Morse finds that the family is strangely untroubled, and several of his prime suspects have flawed characters and dark secrets - and then the Balcombe family suffers another killing. Meanwhile, Morse has to cope with journalists who try to turn his own personality into a story - and he also suffers from an unhelpful Chief Superintendant, covering for the station's usual boss, who puts pressure on him to crack the case in a hurry. In the end, though, Morse is vindicated and his various tormentors get their comeuppance.