Most of the fiction I've been exposed to involving Puritanism and witchcraft has revolved around the idea that the hysteria surrounding witchcraft in the New World birthed a greater evil than any actual witchcraft ever did. What Robert Eggers' debut film does so masterfully is blend the human frailties that come to the fore when witchcraft-related hysteria emerges with a palpable, thick and dread-filled evil that soaks into the entire film.

Much has been written of the lengths Eggers and his crew went to to ensure historical accuracy and they certainly do a magnificent job of creating an ambiance that never allowed me to relax while watching. The characters speak in quasi-Biblical tongues, their hair lank, their countenances sullen. It's a hard life they've chosen for themselves and it's made all the harder when Samuel, a baby, disappears.

The titular witch is used sparingly and two of her three appearances are images that will stay with me for a long, long time. Eggers does well to find a balance between not showing too much and showing enough to suggest a horror beyond what's shown directly: blood and fat, pale moonlight on gnarled skin, a weathered hand.

The cast are all extraordinarily committed and I admired just about every performance in the film. I was especially impressed by Harvey Scrimshaw - he perfectly plays a young man on the cusp of adolescence, questioning himself, his religion and the environment around him. The ensemble scene around him while he suffers from possession is the high point of the film and this is in no small part because of his staggering performance, veering from thrashing in the throes of a fit to religious ecstasy.

There was one point in the film where I was given a fright outright but what's so effective is the atmosphere of dread that's slowly and carefully increased throughout. I've been thinking about the film for days, and I'm sure I'll be thinking about it for a long time to come. Many commentators, on the site and others, were sorely disappointed that it didn't reflect the more prevalent trends in horror at the moment but I'm glad that this film has carried on a tradition of horror that seeps its way into your consciousness and stays.