Walls are no longer mute witnesses thanks to Montgomery's inventions. Murder victims regain their voices with Lea's help. Together, Montgomery and Lea can solve any murder.Montgomery anticipated solving crimes and improving lives with his company, Montgomery Investigations. He didn't anticipate that one of his employees was more than merely sensitive to emotional atmosphere. He didn't know that Lea could feel the emotions left behind, and, in cases of murder, speak to lingering spirits. When Montgomery called Lea and her colleague Kamika from their regular job at his other company, Bad Vibes Removal Services, to help him analyze the scene of a quadruple homicide, he knew his new technology could help solve the murders. He didn't realize that Lea could provide the victim's point of view.These three stories are Lea's first cases working with Montgomery to resolve otherwise unsolvable crimes.