Adaptation of PD James's bestselling homage to Pride and Prejudice. Elizabeth and Darcy, now six years married and with two young sons, are preparing for the lavish annual ball at their magnificent Pemberley home. The unannounced arrival of Elizabeth's wayward sister Lydia, however, brings an abrupt and shocking halt to proceedings when she stumbles out of her chaise screaming that her husband Wickham has been murdered.