Tea maven Theodosia Browning and her tea sommelier Drayton Conneley are guests at a bird hunt styled in the precise manner of an English shooting party. Which means elevenses (sloe gin fizzes), gun loaders, the drawing of pegs, fine looking bird dogs, and shooting costumes of tweed, herringbone, and suede.
But as gunshots explode like a riff of Black Cat firecrackers, another shot sounds too close for comfort to Theodosia and Drayton. Intrigued but worried, Theodosia wanders into the neighbor's lavender field where she discovers their host, Reginald Doyle, bleeding to death.
His wife, Meredith, is beside herself with grief and begs Theodosia and Drayton to stay the night. But Theodosia awakens at 2:00A.M. to find smoke in her room and the house on fire. As the fire department screams in and the investigating sheriff returns, Meredith again pleads with Theodosia for help.
As Theodosia investigates, fingers are pointed, secrets are uncovered, Reginald's daughter-in-law goes missing presumed drowned, and Meredith is determined to find answers via a séance. All the while Theodosia worries if she's made a mistake in inviting a prime suspect to her upscale Lavender Lady Tea.