Happy Valley fans are praying the show will return for a fourth season, despite producers previously declaring Sunday night's finale was the very last episode.
BBC viewers say they have unanswered questions following the crime drama's nail-biting conclusion, which saw Catherine Cawood (Sarah Lancashire) come out alive during her final showdown with Tommy Lee Royce.
The nation watched as twisted murderer Tommy, played by James Norton, broke into Catherine's home after escaping prison and then fleeing from the gang he had been working with.
