The third series of Happy Valley is keeping BBC1 viewers glued to the screen every Sunday night, but how much do you know about the show?
It was a long six-year wait for die-hard fans, who were eager to catch up with Catherine Cawood (Sarah Lancashire) as she fights crime across the Calder Valley. But she's now back on our screens and has unfinished business with nemesis Tommy Lee Royce (James Norton).
This time round, Catherine is close to retirement, with plans to hike in the Himalayas. Sister Clare (Siobhan Finneran) is happily coupled up with Neil (Con O'Neill) from Series 2, while grandson Ryan (Rhys Connah) has turned 16 and is getting into trouble in school.
