When Inspector Tanner is called in to investigate a ruthless murder at Mark's Priory, the grand ancestral home of the Lebanon family, he quickly discovers that nothing is quite as it seems. The household is controlled by the family physician, the footmen behave more like guests than servants and the secretary Isla is afraid for her life. As Tanner moves closer to the heart of the mystery he uncovers a shocking and closely guarded secret ... Building on the phenomenal decade long success of The Agatha Christie Company, which sold over two million tickets around the UK, comes a new thrilling chapter. Following this year's acclaimed production of Ruth Rendell's A Judgement in Stone, the Classic Thriller Company returns with a brand new adaption from the legendary "King of the detective thriller", Edgar Wallace - the brains behind one of the most iconic films of all time, King Kong.Author Edgar Wallace. Company Miracle Theatre Company.