The Apothecary Diaries season 1 episode 3
Episode title: The Unsettling Matter of the Spirit
Tasked with investigating a ghostly woman dancing nightly on the palace walls, Maomao finds a sleepwalking Concubine Fuyou. But with no medicinal cure for sleepwalking, she's forced to dig deeper to find the real reason behind Fuyou's affliction.
