Television viewers were blown away by Sarah Lancashire's performance in missing child drama Kiri, although there was disappointment over "inaccuracies" in the portrayal of social work.
The four-part series follows social worker Miriam Grayson, who is caught up in a police investigation when a nine-year-old girl disappears while on a supervised visit.
Viewers were full of praise for Lancashire's powerhouse of a performance as Grayson.
"Sarah Lancashire is an absolute national treasure. What a performance, as per," said one person on Twitter.
"Everything Sarah Lancashire touches turns to brilliance #Kiri is no different," praised another impressed viewer.
One said the actress was "on another level".
However, social media was also flooded with messages from people saying the case would not have been handled as it was in the programme.
One person tweeted: "If I wasn't a social worker or cared how SW is portrayed I'd think Kiri was fantastic. Great actors and a dramatic plot - the kind of stuff good TV is made of.
"However, cliches, stereotypes and inaccuracies for an hour - perhaps, less BAFTA & more 'could do better' award."
Another called it "a completely inaccurate representation of child protection".
One said it was "the most inaccurate attempt to recreate social work".
The viewer continued: "We don't drink alcohol coffee, we wouldn't be called straight to a police station, and we wouldn't be more bothered about our dog to supervise the visit. #EastEnders managed a better job at this rate!"
Kiri continues on Channel 4.
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BAFTA-winner Jack Thorne (National Treasure) returns to Channel 4 with a powerful and compelling new 4-part serial drama. Kiri examines the abduction of a young black girl, named Kiri, who is soon-to-be-adopted by her white foster family, and the trail of lies, blame, guilt and notoriety that follows.
At the heart of the drama lies Miriam, played by BAFTA and RTS award-winner Sarah Lancashire (Happy Valley, Last Tango in Halifax), an experienced, no-nonsense social worker who loves and believes in her job, but has a maverick and instinctive approach to protecting the children in her care. Miriam arranges for Kiri to have an unsupervised visit with her biological grandparents. But when Kiri disappears during the visit, the fingers of suspicion and blame from the police, the press, and even her colleagues, point firmly at Miriam. As the media spotlight around the story intensifies, Miriam, as well as both sets of families, are forced to ask the toughest questions, not just of themselves, but of each other.