I feel like horror is one of the few genres that tends to truly suffer if you reveal the ending of a story. That, and obviously mysteries or thrillers. The Shrine is a movie you should watch first, without any sort of spoilers, if you really want to see the story in its entirety and get the most out of it. Because...well, I can't say much. What I will say is this: when you are traveling, if the people in a village don't want you to be there...go away. Don't explore. Don't stick around. Don't argue. Just leave.
That, in essence, is one of the establishing factors in The Shrine that really helps set the mood. It's not merely a mystery, but a supernatural thriller. The best kind. Also, of course, best enjoyed in the dark at night...possibly alone, unless you absolutely need someone to cling to. On another watch, I realized this one still held strong, and that made it even better for the kind of story it is. Nice, creepy, and a sort of moral story (which all good horror should be, if you follow the premise any good, dark Grimm faerie tale.)
Please, do yourself a favor, and watch this movie. It's on Netflix...it's waiting for you. Also...maybe avoid the forest for awhile. Just in case.