During a Whiton University's pledge week, the carefree partying turns deadly when brutal murders start befalling the students, sending Ellery into a race against time to uncover the truth behind the school's dark secrets and the horrifying meaning of a recurring symbol: a single exclamation mark.

When a pastor's son discovers that his father's religious movement has become a dangerous and seductive cult of personality, he must shatter the only world he's ever known to escape his father's shadow.