Newly retired Judge Jim Randall is invited to be on a panel at the Harvard Divinity School with Melvin Watson, a fiery evangelical preacher, and Sara Vincent, an MIT professor of philosophy. During the panel discussion, Melvin Watson loses his temper and assaults Judge Randall, an incident which goes viral on social media. When Melvin Watson is found dead in a construction ditch behind the Divinity School the next morning, finding the killer becomes personal.