Dr. Thea Kait is a forensic scientist with the Seneca Police Department. She is called to the scene of a crime by her friend, Detective Kurt Blas. Thereās been a murderā¦ or has there? The body isnāt like anything either of them have seen, and the widow of the deceased issues a warning: āItās in the light.ā Soon, the bodies start racking up ā and the remains are just as baffling. With mounting pressure from Captain Rose, Thea and her forensics team must work quickly to find the culpritā¦ if there is one. The more evidence they find, the less it seems like a human killer. But what could be behind these deaths? How can they stop it? And what, if anything, is in the light?