Christian Science Monitor by Peter Rainer

Starts slowly and ominously and gradually accelerates into a frenzy.

ScreenCrush by Matt Singer

Whatever Demon’s autobiographical elements, this film feels incredibly personal; like a howl of pain ripped straight out of someone’s soul.

The New York Times by Manohla Dargis

Mr. Wrona is very good at thickening the air with mystery, and right from the start he slips in enigmatic details and figures — the prowling bulldozer, a keening woman, a scowling man — that disturb the ordinary scene. Like pebbles dropped in water, these disturbances create concentric circles that spread, disrupting everything.

Los Angeles Times by Justin Chang

Perhaps it’s best to appreciate Demon not for what it implies but for what it simply and unmistakably is: A bravura testament to a talent silenced far too soon.

Austin Chronicle by Marc Savlov

The Polish/Israeli co-production picked up the Best Horror Feature award at Fantastic Fest 2015, and it’s a shame that Wrona is gone, but at least we have this superlative example of his cinematic brilliance.

Slant Magazine by Chuck Bowen

Demon offers a tidal wave of unrelieved longing and regret, with a devilish streak of absurdism.

RogerEbert.com by Simon Abrams

The horrors of Demon are disturbing because you can see how ordinary they might seem to anyone who isn't paying enough attention.

Consequence by Michael Roffman

Wrona’s near-flawless execution serves up a terror that’s enlightening and paralyzing all the same.

The Film Stage by Jared Mobarak

Demon becomes a siren to never forget the past or the many bodies left on battlefields of horrific wars. No matter how civilized or at peace we are now, history will always haunt us.

Consequence of Sound by Michael Roffman

Wrona’s near-flawless execution serves up a terror that’s enlightening and paralyzing all the same.

Time Out by Joshua Rothkopf

It must be noted that Wrona, a director of uncommon promise, committed suicide at a festival where this film was playing. It’s impossible to know his private pain, but it seems like he got a lot of it up onscreen.

The A.V. Club by Katie Rife

It’s the kind of film that, rather like its mournful title apparition, clings to your sleeve and follows you home.

The Playlist by Kimber Myers

Demon is a film that improves the longer it sits with you, as various images seep into your consciousness and reappear without warning.

The Hollywood Reporter by John DeFore

Things head eventually in an abstract direction that may have played better onstage than it does here ("we must forget what we didn't see here," guests are eventually instructed), but a compelling atmosphere lingers.

Variety by Joe Leydon

Up until its unfortunate third-act detour from intriguing verisimilitude to frustrating abstraction, director Marcin Wrona’s Demon enthralls as an atmospheric ghost story with a cheeky undercurrent of absurdist humor.

Entertainment Weekly by Chris Nashawaty

A so-so meditation on historical amnesia. It’s also so weighted down with mysticism and metaphor it forgets to quicken your pulse or whiten your knuckles.