The Conjuring is one if the best horror movies of the 21st Century and is certainly James Wan’s best movie. The script, direction, performances, and camera work in particular are all excellent. Patrick Wilson and Lili Taylor are the two standout performers to me as Ed Warren and Carolyn Perron respectively. The Conjuring also features some unique and inventive camera work for a horror movie which would also carryover into the very good Conjuring 2 (I also recommend this).
The Conjuring has good scares that are more than cheap jump scares and builds tension to make the scares have a better payoff. There’s a reason this movie has created it’s own very successful film universe.
The Conjuring is available on Netflix.