This historical drama, based on a novel by John Masters that was in turn inspired by actual events, follows William Savage (Pierce Brosnan), a British agent of the East India Company, as he is sent with his new wife to India in the early 19th century. While Savage holds the unusually progressive view that the people of India are human and deserve to be treated with dignity and respect, he is still a very proper subject of the British empire and behaves accordingly. One night, when he sees a group of seemingly crazed men rob and kill a defenseless woman, he demands to know what has happened. He learns that the killers were members of a bizarre cult called the Thugees; Savage is determined to do something about them, and he works his way into the group by disguising himself as one of their number; however, the more Savage tries to win the trust of the Thugees, the more he must act as one of them, which leads him into a murderous secret life of his own. The Deceivers was produced by Ismail Merchant, his first film with a director other than James Ivory.
~ Mark Deming, All Movie Guide