As others have noted, this has a Twin Peaks vibe, which is a good thing, but it also has big script problems. After taking four hours to build up the story and cast suspicion on everyone, the final hour wraps things up by introducing at least two major plot points that came rather unfairly out of the blue (the villains's motive and a supernatural bent in the finale). Had the story played fairer with the viewer, I would have liked this more. There are virtually no likable characters, and even the ones who might seem to be moral centers are not, and spending five hours with people you don't really care about is a real test of the viewer's constitution. Decent acting, certainly, and a nice mood is set throughout, but overall not satisfying.
Review of Mayday
