Paramedic Jodi Duncan recognizes the work of a serial killer before the Myrtle Beach PD even suspects a connection between the deaths of two pregnant women. Despite the vast differences in the two cases, Jodi urges Detective Nate Quigley to think outside the box. After digging deep into the separate investigations, Nate finds no evidence to support a serial killer theory, and he warns Jodi to back off police business, which only fuels her passion for the cases. When a third pregnant woman is murdered, Nate is named lead detective on the case and works to link the deaths in order to unmask and stop the serial murderer, a disturbed man who believes God and the devil battle inside his head to bend him according to their wills. As he fights both voices, his interest fixates on Jodi when he discovers her obsession with ending his rampage.