Mr. Shevvington is the handsome principal at Christina's school, and his wife is the English teacher. They seem perfect. When the autumn fog rolls over the coast, Christina and Anya board at the Shevvington's home, and Christina discovers nothing is as it seems. There is evil at work. Anya is slowly losing her mind, and Christina knows the Shevvingtons are behind it. Now they turn their attention toward her.