Meg's sister-in-law, Delaney is pregnant. Since her due date is on or around Christmas Day, this is putting a bit of a damper on the usual holiday festivities. Meg and Michael are NOT hosting the usual house full of relatives and parties. Instead, Meg, along with her mother, her grandmother, her cousin Rose Noire, and her good friend Caroline, are militantly doing everything they can think of to keep Delaney quiet and healthy.

On his way to his betrothal, young Lord Penric comes upon a riding accident with an elderly lady on the ground, her maidservant and guardsmen distraught. As he approaches to help, he discovers that the lady is a Temple divine, servant to the five gods of this world. Her avowed god is the Bastard, "master of all disasters out of season", and with her dying breath she bequeaths her mysterious powers to Penric.

Meg's neighbors, the Smetkamps', have won a makeover for their old home from Marvelous Mansions, a flashy, yet dubious company, focused on making historic homes more "modern." The company is already several days into its makeover of the Smetkamps' house, and tensions are running high—not only between the officious, demanding Mrs. Smetkamp and her neighbors, but also between her and the renovation crew.

When a failed entrepreneur is temporarily left in charge of his aunt's huge gothic home, he knows he must be able to make a profit from it somehow. Murder, he decides, is the only way to do it. For Madingley Grange is the perfect venue for a 1930s murder-mystery weekend, and Simon Hannaford – with the reluctant help of his long-suffering sister – soon hatches a plan for money-spinning mayhem. From the conservatory to the claret cellar, the clues are carefully sprinkled. But when the guests arrive, it is obvious that the game won't be going as planned.

Lady Emily Hardcastle is an eccentric widow with a secret past. Florence Armstrong, her maid and confidante, is an expert in martial arts. The year is 1908 and they've just moved from London to the country, hoping for a quiet life. But it is not long before Lady Hardcastle is forced out of her self-imposed retirement. There's a dead body in the woods, and the police are on the wrong scent. Lady Hardcastle makes some enquiries of her own, and it seems she knows a surprising amount about crime investigation...