1800 - Three years after she escaped to London with her bisexual lovers, Bella Rushdale wakes one morning to find their delicate menage a trois about to shatter. Vaughan, Marquis of Pennerley has left abruptly and without explanation. Determined to reclaim him and preserve their relationship, Bella pursues him to his family seat on the Welsh Border, where she finds herself embroiled in his preparations for a diabolical gothic celebration on All Hallows Eve - a phantasmagoria. Among the shadows and phantoms, Bella and her lovers will peel away the deceits and desires of past and future.