Ritual takes the often used trapped in a motel room thriller and adds in a satanic cult element but doesn't do anything original with the idea.
The intro had my hopes up with it's stylish opening and eerie credits with the gradually appearing skull mask setting the mood very well. yet as the movie carried on my interest gradually waned as each scene was a real effort to sit through. An almost totally unlikeable female lead and virtually no chemistry between the two main actors made for every exchange between them a real laborious viewing experience.
The cults masks were fairly effective but you never really got to see what they were up to. The strange use of a high pitched whine as scenes got more "intense" was a rather annoying sonic choice that for me didn't pay off. The usual horror movie foolish choices appear but you should be used to that sort of thing if you watch this sort of movie. Obvious comparisons to vacancy are likely but the two movies are almost poles apart in terms of delivery. Vacancy is almost relentless once it gets going were as Ritual is a more sedate slow burn.
The biggest problem with Ritual for me was it wasn't any fun. It was just a little too miserable and slow. Ritual is not really a bad movie but having seen it it's probably one I wish I'd waited to watch on the horror channel.