When a nanny for a VIP family is killed by an exploding ring light, it quickly becomes clear that this was no accident. Barnaby and Winter find themselves propelled into the worlds of social media influencing and domestic staff for the super-rich.

A luxury dining experience aboard a restored railway carriage turns deadly when a woman is murdered before Barnaby's eyes. Now a witness, he must hand the reins to Winter. Is the killer wanting to shut the restaurant down?

The murder of the President of a motorcycle club plunges its members into turmoil. As suspicion spreads throughout the group, Barnaby must determine if the killing was driven by resistance to change or a more personal motive.

When a leading wellness practitioner inherits a vast manor and turns it into an exclusive retreat, her plans spark outrage in the village. However, it is not long before the calm is broken and the retreat turns deadly.