When Agnes and the other inhabitants of Sunset Hall, a house share for the old and unruly in the sleepy English countryside, investigate the murder of their neighbor while covering up another, they step out of their comfort zone to tangle with inept criminals, the local authorities and their own dark secrets.

When best-selling author Dame Ariadne Carlisle’s lead reindeer Rudy—and her good luck charm—goes missing, Chet the dog and his human partner Bernie, while searching for Rudy, find their seemingly simple case turning into a murder investigation when Dame Ariadne’s personal assistant plunges to her death.