Richardson, presenting as glamorous and scarily fierce, anchors the film with poise while Linpow holds his own and proves adept at making unnervingly realistic squeals and howls of pain.

What begins as a seemingly normal home invasion turned wrong soon devolves into a film that is body horror mixed with sentiments of 1932’s The Old Dark House, and an atmosphere not unlike a Scandinavian crime drama.

Atmospheric, layered, and well-paced, the film not only cleverly subverts the genre while still delivering on thrills, but takes the time to build heartfelt relationships at the core -- keeping the stakes high right to the final scene.

... A taught, twisty thriller that rewards careful viewing.