Wealth can have its drawbacks. Case in point: The Collard and Vandervent families, who for decades have shared a large estate in the elegant London suburb of Blackheath. It’s now the 1890s, and over the years, the families’ near-incestuous entanglement has grown into a toxic web of lies and bitterness. While mama keeps an iron grasp on the purse strings, an unmarried daughter sucks greedily on her own disappointment, a son raises corruption to an art form, and an ethereal daughter-in-law casts come-hither glances at anything in pants.