Wheatley doesn’t waste much time at all before plummeting Martin and Alma into insanity. In the intro to Martin and Alma, the filmmaker also sets up a folk horror deity potentially lurking in the woods. That’s before they begin their hike and pass by strange tuber-like plants that emit vapors. Will this be a matter of eco-horror or folk horror? As Wheatley plummets his characters and the viewer into hallucinatory madness, the answer is a bit of both. His protagonists find themselves at the mercy of forest dwellers, who may or may not be under the sway of something else entirely. As usual, the filmmaker wants you to decide for yourself through a wild and illusory voyage that gives major hints toward a mythical embodiment of nature.