Every so often a show comes along that grabs the attention of the nation, has everyone talking about it in the coffee shops, over the water cooler in work. Hours are spent coming up with theories, trying to work out what the next big twist will be, praising the acting, celebrating the writing.
I don't make the statement that Happy Valley is the best crime drama ever lightly. There are lots of contenders for the title from Line of Duty to Peaky Blinders, Sherlock to Prime Suspect, someone argued that it doesn't beat the Sopranos. But are they wrong?
The first two series of the BBC drama each won the Bafta TV awards for Best Drama Series and Writing, and series three must already be an award contender. If Sarah Lancashire doesn't win Best Actress, and Sally Wainwright doesn't take home the Writing award again then it will be all wrong.