Reviewers generally found the film's mood exceptional but were divided on its pacing and narrative clarity.
Judith Roberts delivers a terrifying performance as the family's matriarch, while Rory Culkin makes an "effortlessly creepy" appearance in the second half. The.Last.Thing.Mary.Saw.2021.PL.720p.AMZN.WEB-D...
The film is visually striking, using naturalistic candlelight and a palette of grays and browns to create an oppressive, "you-are-there" feeling. Reviewers generally found the film's mood exceptional but
“There are cracks in the icy mood of this austere, slow-paced horror.” Rotten Tomatoes “There are cracks in the icy mood of
“The Last Thing Mary Saw is so effective as a vehicle for performances, atmosphere, and period detail... that one may wish that it added up to more.” Roger Ebert · 4 years ago The Last Thing Mary Saw (2021) - IMDb
Beyond the horror, it serves as a stark critique of religious fundamentalism and the historical trauma of conversion-style "corrections". Critical Perspectives
Critics from PopHorror and other outlets praised the raw chemistry between Stefanie Scott and Isabelle Fuhrman.