August 1815. The Duke of Buckingham is dead – but the feelings on this are decidedly mixed. At the Buckingham estate, his widow Selina discovers she must remarry within seven days or lose everything. So, when the perfect candidate appears, she thinks the problem is solved. Only something much darker is happening. And as an unlikely affection emerges, nastier truths come to light. With her bankrupt family depending on her and a power-hungry social climber gunning for her title, Selina's running out of time.