Kembridzh, konec XVIII veka. Otchayanno pytayas' spasti reputaciyu svoego syna Frenka, studenta, kotoryy tronulsya rassudkom, uvidev prizrak umershey zhenshchiny v universitetskom sadu, patronessa kolledzha nanimaet dlya chastnogo rassledovaniya Dzhona Holdsvorta, avtora populyarnoy knigi o privideniyah. Okazavshis' v stenah Kembridzha, Holdsvort obnaruzhivaet, chto potustoronnie sily ne tak uzh vinovaty v pomeshatel'stve Frenka, hotya delo tut i vpryam' nechisto. Kak vyyasnilos', tot byl uchastnikom elitnogo taynogo obshchestva s osobymi ritualami...
