After suffering a series of miscarriages, an American doctor moves to her husband’s family’s estate on a remote Scottish island, with plans to adopt a child from a yet-more-remote island equipped with a state-of-the-art obstetric hospital for unwed mothers. When she discovers a bog body on her property, though, a grim mystery involving matricide and a patriarchal cult begins to unravel.

There are a lot of silly things about this movie that even the most intentional suspension of disbelief cannot overcome. I can accept that the doctor is good at detective work, but her handling of both a backhoe and a boat on a choppy North Sea channel are a bit hard to take. And I completely missed how the police sergeant who helps her with her investigation went from six weeks pregnant to giving birth to a pretty large baby in what seemed no more than a day or two in movie time. Based on a novel, it would seem that the film had to do some major time dilation to get its story to fit into an hour and a half.

Still, I enjoyed this movie more than I disliked it. Radha Mitchell, as the doctor, and Joanne Crawford, as the police sergeant, both give solid performances; the scenery is starkly beautiful; and the last 15 minutes is pretty awesomely unhinged, with more tension and drama than I anticipated. It’s not a complete waste of 90 minutes, and if you’ve already seen “The Wicker Man,” “The Apostle,” and “Harvest Home,” you might as well watch this take on creepy-fertility-rites-in-an-isolated-community tale.