This review may contain spoilers. I can handle the truth.
The first two acts of this are pedestrian - David Gordon Green either doesn't know or doesn't care how to structure a horror movie - but goddamn it is a breath of fresh air to see a horror movie set up and then pay off character beats without a bullshit twist ending or plot swerve. The directness of the last act - Laurie Strode's lifelong preparation actually works! - is very satisfying. Two stars for the first two-thirds, four stars for the last act.