Deep in Blacktrees Forest is a bombproof shelter. There is a doomsday prepper group in the village. Preaching survival at any cost will come back to haunt the residents.
Gated estate Challis Court is a tight-knit community for retired police officers, but when a new arrival is found dead, the other residents regard the murder as an affront. Barnaby realizes that the killer is likely an ex-police officer.
A trendy organic bakery in a restored mill is causing resentment amongst several villagers. Causton CID don't take the complaints too seriously until several people are dosed with a dangerous hallucinogenic. Then the first murder occurs...
Parish chairwoman Lois Springfield is found dead in a local theater. The detectives assume it's because of her hostility toward a drag show being organized, but other motives are at play.
