Inexorable is like watching a spider build its web -- hypnotic, intricate, dangerous -- and then realizing you're inside it.

I was in love with this film from the opening shot, specifically because of the feel of the film. Belgian director Fabrice Du Welz filmed the entire movie in 16mm, and for those of you who don't know what that means, think of classic, gritty 70s films like The Texas Chainsaw Massacre.

The film does have a feel, almost literally, as Du Welz sculpts this movie out of 16mm stock using color as a chisel and sound as the mallet.

After more traditional horror films (The Ordeal / Calvaire and Alleluia) and a tween Bonnie & Clyde flick (Adoration), Inexorable is Du Welz's most mature effort to date. What the story lacks in originality (a young waif insinuates herself into a well-to-do couple's life so far that she hits their depths and causes secrets to come spewing out), the actors make up for with incisive performances and Du Welz overcomes with a luscious job of painting this rich, visual tapestry.

If you want to watch a decent psychological horror film or, even better, treat yourself to a masterclass in directing, take whatever opportunity arises to witness the magic that is Inexorable.