The real-life BBC One series debuted last night and received a lot of acclaim from fans.
It follows the story of Karen Matthews who claims her nine-year-old daughter Shannon Matthews has gone missing but is later found drugged and hidden underneath a bed.
After pleading on TV for the safe return of her child and 24 days of endless searching, it was revealed that the mother had orchestrated the plot to bag herself the reward money which was £50,000.
And in the two-part series, Sheridan plays the neighbour Julie Bushby who helped organise marches and searches to find Sharon and also stood by Karen throughout her trial.
Sheridan Smith stars as neighbour Julie Bushby in The Moorside
The actress' performance has been hailed as "wonderful" in the BBC One series
Fans immediately took to Twitter to hail the 35-year-old actress as “one of the best” after her “wonderful” performance.
One viewer gushed: “@Sheridansmith1 you really are one of the best actors this country as ever seen can't wait for next Tuesday super talented lady.”
“I have to say, @Sheridansmith1 is by far the best actress on our screens at the moment… fantastic performance tonight!,” another wrote.
A third said: “Another brilliant drama with the even more brilliant @Sheridansmith1 , I can't wait for next week #moorside.”
One fan had a lot of praise for the actress: “Sheridan Smith is like the UK's goddess of TV, there is no role she can't kill! #SheridanSmith.”
The Moorside viewers have praised Sheridan's performance and called her one of the "best"
Moorside: The real story
Tue, February 7, 2017
Moorside: The new BBC drama follows Sheridan Smith, as Julie Bushby, in the search for missing school girl Shannon Matthews. Here's the real story behind the programme.
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Sheridan – who was born in Lincolnshire – had to put on a West Yorkshire accent in the series.
And although many praised her performance, some mocked her attempt and called it “distracting”.
“@Chris_Lane1989 sheridan smith had the worst Yorkshire accent of the lot,” said one Twitter user.
Another person wrote: “#TheMoorside is it just me or is Sheridan Smith's accent really distracting for everyone?”
“Omg Sheridan Smith I love you but your accent is already ruining #TheMoorside,” a third said.
The Moorside continues next Tuesday at 9pm on BBC One.