When a murder is staged at magnificent Knebworth House, Victorian writer-sleuths, Charles Dickens and Wilkie Collins investigate. August, 1856. Wilkie Collins and Charles Dickens are spending the summer at Knebworth House, the magnificent Hertfordshire home of fellow writer Lord Edward Bulwer-Lytton, where they are putting on a charity performance of one of Lord Edward's most successful plays, The Lady of Lyon. But the...