When retired art professor Eloise Mercer restores a narrow brick storefront in the lakeside village of Bellmarsh to open her long-dreamed-of gallery, she expects cracked plaster, warped floorboards, and the occasional meddling neighbor. She does not expect to find a hidden painting sealed behind a false wall. The unsigned portrait is exquisite, unsettling, and rumored to be tied to a vanished circle of local artists whose scandals were politely buried decades ago. Days later, the painting’s likely creator, reclusive painter Adrian Vale, is found dead in his cottage under circumstances too tidy to trust. While police lean toward natural causes, Eloise sees the careful omissions only an art historian would notice. To uncover the truth, she must trace the portrait’s origins through jealous rivals, forged reputations, old patronage, and one secret someone in Bellmarsh would still kill to protect.