India, 1825: the country is being ravaged by cult members known as Thugees or "The Deceivers", who commit robbery and ritualistic murder. Appalled by their activities, English Captain William Savage undertakes the hazardous task of going undercover as a 'Deceiver' in order to infiltrate their ranks. He is at constant risk of betrayal and vengeance and undergoes a disturbing psychological transformation as he experiences the cult's bloodlust firsthand....