A young Brooklyn couple whose relationship is on the rocks heads upstate to a remote B&B to work things out. The plan is ill conceived from the start. Arriving at The Happy House, they soon begin to suspect theyve wandered into a real life horror movie. From there events go from weird to terrifying as they contend with the houses batty owner, her imposing son, a moody Swedish lepidopterist, a pedantic English professor, an extraordinarily rare butterfly, the worlds best blueberry muffins, a .44 Magnum, a demented serial killer, and one very strict rulebook.