《金字塔守则》果酱短片集-韩剧网 A group of 10 true crime obsessives are invited to the opening weekend of the newly renovated Cold River Motel, the site of a 30-year-old unsolved satanic mass murder. History repeats itself when the guests get stranded and start getting knocked off one by one during a murder spree that grows exponentially more gruesome than the original with each kill.