I saw previews for this show and it looked interesting. Plus it has David Tennant, Arthur Darvil and the actors who play Mr. Filch and Dean Thomas from Harry Potter. The show is completely brilliant and all the hype around it was right. It is a little on the depressing side given the subject but I am completely sucked in and I want to know whodunit. If you like a good drama/mystery I would definitely recommend it.