The movie examines consequences of lashing out from grief and anger with a supernatural bent. The buildup is quiet but far too long. it serves a decent character study exploring the mother/daughter bond during a time of grief, but it takes too long for the plot to engage. This is offset somewhat by some good acting, but the movie is tedious for a good chunk of its running time. The daughter character is written to be unlikable, but to be fair, this stems from being a moody teenager stemming from a place of tragedy. The actions she takes are horrible even if immediately regretted, and the movie is unforgiving. There are good scares and excellent atmosphere with creepy manifestations. but everything intensifies nicely in the last act with a well executed if somewhat predictable ending. There is a purposeful ambiguity to the proceedings, content to play with the viewer's perspective on the supernatural. Overall, hampered by an excruciating build and unlikable character, but still delivers.