A craft centre in the old mill at Morton Fendle is losing money. Several locals have invested in the business and believe they have been swindled by Alan Hollingsworth, the man behind it. When Hollingsworth's glamorous wife Simone goes missing, Barnaby believes she has been kidnapped and puts Hollingsworth under observation. However, Hollingsworth evades the police, carrying a bundle of cash, and a woman neighbour who follows him to his rendez-vous is killed in a bizarre road accident. Then Hollingsworth is found dead, and Simone turns up alive. Barnaby guesses she and a friend faked the kidnapping, but he can't prove it.

Unearthly happenings in and around a local museum create an atmosphere of terror.

The Midsomer Worthy local amateur choir includes Joyce Barnaby & Dr Bullard amongst its members. Their conductor, Laurence Barker, has a bitter feud with a rival. Following a rehearsal for the regional Four Choirs competition, the lead tenor, Connor Simpson, dies mysteriously.

When Dr Alan Delaney is killed by a hit and run driver, Barnaby realises the real target was Delaney's senior partner, Dr James Kirkwood. Is the killer trying to prevent James from marrying beautiful divorcee Delyth Mostyn? And how is his death linked to £30,000 which is missing from the surgery accounts? Barnaby and Jones must travel to Snowdonia to unravel the truth.