Beloved New York Times bestseller M. C. Beaton's cranky, crafty Agatha Raisin—the star of her own hit TV series—is back on the case again.

Agatha Raisin's Cotswolds village is in an uproar when word spreads that their beloved Red Lion pub is set to close. The brewery that owns the building has raised the rent, ousting the pub's owner so they can redevelop the space into apartments. As the villagers scramble to change the brewery's mind, Agatha and her team at Raisin Investigations begin looking into more direct ways to save the pub.

Meanwhile, Sir Charles Fraith attempts to wheedle his way back into Agatha's affection, crossing swords with James—Agatha's other paramour—who is determined to thwart his efforts. As the two attempt to woo Agatha at a local reenactment of a seventeenth-century battle, Agatha has her sights set on something else. Amidst the chaos of the battle, a body is discovered in a copse of trees just off the battleground. While many brush off the death as an accident, Agatha digs deeper after discovering the dead man had connections to the same brewery putting the Red Lion out of business.

After an attempt is made on Agatha's life during a visit to the brewery, her investigation becomes all the more urgent. Can she find the murderer before becoming their next victim? And perhaps even more importantly for the village, can she find a way to save the Red Lion at the same time?