When child psychologist Tom Seymour plunges into a river to save a young man from suicide, his own repressed memories flood back. For Tom begins to realize that the young boy's challenging journey was careening out of control straight towards his past!

Their relationship on the rocks, a young Brooklyn couple heads to a remote B&B to work things out. But from the moment they arrive at The Happy House it's one disaster after another, and they soon begin to suspect they've wandered into a real life horror movie. Events escalate from weird to terrifying as they contend with the house's batty owner, her imposing son, a moody Swedish lepidopterist, a pedantic English professor, an extraordinarily rare butterfly, the world's best blueberry muffins, a .44 Magnum, a demented serial killer, and one very strict rulebook.