A former U.S. Marine, struggling with dissociative identity disorder, is granted the powers of an Egyptian moon god. But he soon finds out that these newfound powers can be both a blessing and a curse to his troubled life. When Steven Grant, a mild-mannered gift-shop employee, becomes plagued with blackouts and memories of another life, he discovers he has dissociative identity disorder and shares a body with mercenary Marc Spector. As Steven/Marc’s enemies converge upon them, they must navigate their complex identities while thrust into a deadly mystery among the powerful gods of Egypt.