I agree with both of the other reviews of this, but would rate it higher, a decent 6 bordering on a 7/10.

What I did enjoy the most, after a slew of generic Blumhouse films that essentially amount to "the scary... phone/swimming pool/cupboard/basement/whatever". This at least felt believable and seemed to have care and attention put into it. Niamh Carolan played a nicely understated lead, underscored with some nice visual touches from John Barnard Directing.

It's cetainly better than expected, the metaphors felt natural and not trying to hammer a political point, so you could probably comfortably watch this as a Covid-conspiracist or from understanding the sociological impact of that event (and ongoing fallout).

Again, worth a watch and a nice contrast to a lot of the over-saturated horror fare of late.