Ameku Takao is a genius doctor with a knack for solving all kinds of difficult cases. When a man with blue blood is brought to Tenikai General Hospital—where Takao is the vice-director—after having his leg bitten off by a large beast, she starts investigating the intriguing case with the aid of her colleague, Takanashi.

"Do you believe a video can be cursed?" A girl walks in front of a train after watching a particular video and is subsequently admitted to a psych ward. Takao is the only one who believes her twin sister when she says it wasn't a suicide attempt but the result of watching a cursed video, and the genius doctor sets about investigating.

Takao gets sued for malpractice! The hospital director uses the lawsuit to push for the disbandment of the Department of Investigative Pathology.