10 episodesFirst aired 12 January 2023
Season four brings the final chapter of the Turner story to an epic and emotional conclusion. Leanne’s war with the Church of Lesser Saints heightens, threatening Spruce street, the city of Philadelphia and beyond. Meanwhile, the shattered Turner family must not only confront the increasing threat of Leanne, but the certain reality that Dorothy is waking up. As the Turner family brownstone continues to crumble, questions are finally answered: who is Leanne Grayson and who is the child in their home?
E1Jan 202324m
The war between Leanne and the Church of the Lesser Saints reaches its peak.
E2Jan 202327m
Leanne begins to torment Dorothy as chaos overtakes Spruce Street.
E3Jan 202331m
Dorothy hires two live-in nurses to help speed up her recovery—and protect her from Leanne.
E4Feb 202325m
Sean sees Leanne's true colors while she hunts her enemies on Halloween.
E5Feb 202327m
Sean and Dorothy host the new neighbors on Spruce with plans to finally get Leanne out of the house.
E6Feb 202328m
The birthday party from hell ensues when the cult makes its boldest move yet with Leanne.
E7Feb 202327m
Dorothy discovers a connection with Leanne. Uncle George shares information with the Turners.
E8Mar 202326m
Sean and Julian make a decision about Leanne.
E9Mar 202332m
Sean and Julian open up about a secret.
E10Mar 202329m
As the world crumbles, can anyone stop Leanne?