Holy Smoke!

Holy Smoke is a 1999 Australian drama film directed by Jane Campion, who cowrote the screenplay with her sister Anna. It premiered at the 56th Venice International Film Festival and was shown at the New York Film Festival and the Taipei Golden Horse Film Festival before being released theatrically.

Miriam arranges a reunion with Gilbert, who supposedly is recuperating in the Outback, and this charade lands Ruth in the clutches of P.J. Waters, an American exit counselor who deprograms members of religious cults. In a remote cabin, he isolates Ruth, separates her from her sari and religious props, challenges her faith in Baba, and slowly wears her down. As she begins to weaken, Waters finds himself sexually attracted to her, and in time Ruth allows him to seduce her. She then turns the tables on him, as she discovers her sexuality allows her to make mincemeat of his machismo.The film was made on location in Paharganj in Delhi and Pushkar in India and Sydney and Hawker in the Flinders Ranges in South Australia. Interiors were filmed at Fox Studios Australia. ........

Source: Wikipedia