SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk, or better, come back to this article later!
SPOILERS AHEAD
The Spine of Night Plot Summary and Synopsis
When ancient, dark magic falls into sinister hands, a group of heroes from different eras and cultures must band together to defeat it at all costs.
Source: Wikipedia (CC BY-SA 3.0).