Nothing But Blackened Teeth By Cassandra Khaw

Cassandra Khaw's Nothing But Blackened Teeth is a gorgeously creepy haunted house tale, steeped in Japanese folklore and full of devastating twists. 
A Heian-era mansion stands abandoned, its foundations resting on the bones of a bride and its walls packed with the remains of the girls sacrificed to keep her company.
It’s the perfect wedding venue for a group of thrill-seeking friends.
But a night of food, drinks, and games quickly spirals into a nightmare. For lurking in the shadows is the ghost bride with a black smile and a hungry heart.
And she gets lonely down there in the dirt.