As their exile in Venice draws to a close, Roman detectives Nic Costa and Gianni Peroni are ordered to investigate an apparently open-and-shut case, a fire in a glass foundry that has claimed two lives, so all they want is to wrap it up quickly. However, as they dig more deeply into the insular glass-making community on Murano and the strange Arcangeli family, things don’t quite add up. With increasing pressure from above to finish quickly, events spiral quickly out of control – with devastating consequences...