Chloe Nates and Mary Sullivan, two best friends who live together, are preparing their basement inside their big beautiful home in the midst of rural Montana. Chloe and Mary and midwives, meaning they help women deliver their babies. But Chloe and Mary are also witches. When a normal human woman comes to give birth, they immediately send the mother to their little birth house a half mile behind their home where the mother can have a calm, peaceful birth with their help. But when a witch comes to give birth, they prepare the basement for the magical birth ritual. And tonight a witch is coming to give birth to her baby...