影片改编自松原田螺撰写的同名畅销书，讲述松原田螺居住凶宅的真实经历，先导预告中也展现了他居住过的一些房子的景象。
A blended family from the city buys a house sight unseen in an isolated backwoods hamlet. Things get rocky when the locals aren't as welcoming as expected and a dangerous urban legend turns out to be true. In their struggle to put down roots, they find their sanctuary in peril-and their lives threatened-by the land's haunted past.
校园里的一场大冒险演变成了都市传说。当青少年们召唤“蓝宝宝”时，某种东西回应了他们。这场游戏蔓延开来，留下的是悲伤和私语。阻止它意味着要面对第一次召唤，以及被召唤的代价。
