Forget about the mediocre trailer, Mike Flanagan's mind-teasing plot is interesting to follow and it gets much more interesting as the fine line between reality and fantasy becomes progressively fuzzy. The plot is equally split into three phases with the opening act that kick starts the mechanic of the story with reminding the audience that there is an unfinished business to deal with. The slow burn opening quickly ascends into the middle stint that tries to challenge the insanity of the story. Yes, it does. And Mike Flanagan throws in an unexpected character-driven plot that uses the four actors who are playing two characters eleven years apart so condemning well.
If you are not yet impressed, wait for the final act and all goes full throttle of constant snapping those tiny scary moments and they chill you right out. In the end, it may provide little closure but a true reward for enduring all of those hay-wires. Oculus carries a non-conventional method in its story-telling, frequently jumps the story back and forth, and it becomes more frantic (could be annoying) towards the end. It is a good idea that Flanagan avoids from revealing too much from the past for the sake of developing more questions and surprising parallelism between the timelines. But despite the crazy pacing, Oculus frequently hits on the note it needed to impress.
Unfortunately, the tagline of it been one of the scariest movie is an overstatement. But Oculus is a mind game that is effectively made and elegantly displayed.