Winter of 1899 - the end of the Victorian Era. As the bitter cold descends upon Whitechapel, our heroes find themselves on the edge of peril - a serial killer with subhuman desires and a superhuman ability to escape arrest is on the loose. Inspector Edmund Reid (Matthew Macfadyen, MI-5), Captain Homer Jackson (Adam Rothenberg, Mad Money), and Long Susan (Myanna Buring, Jack Taylor) as the trio seeks to bring him and his cannibalistic brother Nathaniel to justice. Meanwhile, the three must contend with the return of the crooked inspector Jedediah Shine (Joseph Mawle, Game of Thrones). See Reid, Jackson and Long Susan fight to bring justice to the Whitechapel streets in the final season of the show People called an entertainingly sinister dip in the cesspool of 19th century criminality.
The most shattering, emotionally raw ending imaginable - The Guardian