In Lingyan Mountain, there is a dreamy Lingtan Reservoir. It is said that the location where the reservoir is located was originally a bustling town. It is said that when the weather is good, the brilliant sunlight shines through the clear water. At the bottom of the reservoir, the streets and houses of the original town can be seen clearly, like an underwater city. However, few people can dive to such depths and witness the underwater wonders with their own eyes. And in this big lake, there are also many chilling horror stories, and the story of the "water ghost" is one of them...