In london in the 1930s, the invisible Detective begins his investigation of a strange, unsettling death, which brings him and his crime solvers to a seemingly harmless house. but they soon find out that this creepy house contains a mad scientist who is creating something so horrifying that it will take everything in their power to stop it. Meanwhile, in the present day, Arthur Drake is haunted by memories that are not his own. then a girl from school appears with some interesting information, and provides a link to an old haunted houseand perhaps to the invisible Detective as well. . . .