Watch What Happened Downstairs? Online Avalaible Now [ FREE ] Select your Language : While staying at an Airbnb in upstate New York, Robert and May find themselves in a haunted house. The problem is, they can't remember anything that happens downstairs. Watch movie online - EN Watch Movie trailer Download Links - EN Language SD Quality - EN HQ Quality - EN HD Quality - EN HD Quality - EN 4K Quality - EN 8K Quality - EN