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Netflix adds underrated horror gem that left fans ‘shaken to their core’

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Thursday, January 29, 2026

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A horror film from 2013 with dedicated fans has arrived on Netflix (Picture: THA/Shutterstock) Netflix has added an under the radar horror film with passionate fans that claimed to ‘loose sleep’ over its scares. Described as ‘a masterclass in atmospheric horror’ and ‘a must see’, ...

For Editorial Use Mandatory Credit: Photo by THA/Shutterstock (15063199e) Lilly (ISABELLE NELISSE) hides behind sister Victoria (MEGAN CHARPENTIER) in "Mama" "Mama" 2013
A horror film from 2013 with dedicated fans has arrived on Netflix (Picture: THA/Shutterstock)

Netflix has added an under the radar horror film with passionate fans that claimed to ‘loose sleep’ over its scares.

Described as ‘a masterclass in atmospheric horror’ and ‘a must see’, the flick was directed by It filmmaker Andy Muschietti, and stars Jessica Chastain and Game of Thrones actor Nikolaj Coster-Waldau.

Oscar-winner Chastain, whose acting is roundly praised in this hidden gem as her ‘best performance yet’, would go on to play the role of Beverly Marsh, working with Muschietti again for the 2019 sequel to the popular clown-centric Stephen King adaptation he later directed.

In Muschietti’s feature debut Mama, which was adapted from his 2008 Argentine short film Mamá, two young girls abandoned in a forest cabin after being kidnapped by their psychotic father are found by their uncle (Coster-Waldau) and brought back to live with him and his girlfriend Annabel (Chastain).

Fostered by a creepy and unknown entity that they fondly call ‘Mama’ during their feral early childhood, Victoria and Lily are also placed in therapy through a welfare clinic.

But Mama eventually follows them to their new suburban home, wreaking further havoc on their makeshift family and bringing nightmares in her wake.

For Editorial Use Mandatory Credit: Photo by George Kraychyk/THA/Shutterstock (15063200d) Lucas (NIKOLAJ COSTER-WALDAU) and his girlfriend, Annabel (JESSICA CHASTAIN), in "Mama" "Mama" 2013
Mama stars Nikolaj Coster-Waldau and Jessica Chastain as a couple in charge of caring for two feral kids who have been fostered by a malevolent force (Picture: George Kraychyk/THA/Shutterstock)

The film was not a massive hit with critics, gaining a 63% score on Rotten Tomatoes, but in the intervening years it has also attracted a cult fanbase ready to defend the movie from its detractors and insisting it ‘does not get the credit it is due’.

While some say Mama lacked proper fright, others vehemently disagreed with Letterboxd fans insisting they’d ‘never seen anything scarier’ than the supernatural chiller.

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‘This was so scary bro I don’t ever want to watch this again,’ added Layla.

On Rotten Tomatoes there was further agreement, with David C posting: ‘No other film before or after this has caused me to lose sleep, but I lost two nights over this. Is that not what every horror strives for in its very essence? For me personally I cannot give less than 5 stars.’

Another viewer, who claimed to have seen ‘many, many horror films in my lifetime’ shared that they had ‘rarely (if ever) seen one that has touched me so deeply, rewarded me so profoundly, and at the same time managed to scare the everliving s**t out of me so many times in one night’.

For Editorial Use Mandatory Credit: Photo by THA/Shutterstock (15063199b) (L to R) Lilly (ISABELLE NELISSE), Lucas (NIKOLAJ COSTER-WALDAU), Victoria (MEGAN CHARPENTIER) and Annabel (JESSICA CHASTAIN) in "Mama" "Mama" 2013
Fans claimed they lost two nights’ sleep over the scary film (Picture: THA/Shutterstock)

‘Mama has left me shaken to my very core, in so many good ways,’ they added.

‘I don’t want to write too much about this movie’s plot. I will say – don’t watch a late showing… you won’t want to go home in the dark after watching this one,’ teased another fan on IMDb.

They also warned viewers to ‘pay close attention to everything that’s going on in the foreground – and especially the background – in every moment of every scene of this film’.

Mama was also executive produced by icon of the genre, Guillermo del Toro.

At the time of its release in early 2013, it knocked Chastain’s counter-terrorism thriller Zero Dark Thirty off the top sport at the US box office, for which she was nominated for her second Oscar in a row.

Mama is streaming on Netflix in the UK now.

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