What is "insiang"

Insiang is a 1976 Filipino drama film directed by Lino Brocka, adapted from the teleplay of the same name by Mario O'Hara (who also co-wrote the screenplay), which tells of a young poverty-ridden woman who seeks revenge for those who have ruined her life. The film stars Hilda Koronel, Mona Lisa, Ruel Vernal and Rez Cortez. Insiang is the first Filipino film to enter the Cannes Film Festival. The rights to Insiang was handed over to the Film Development Council of the Philippines by the film's producer Ruby Tiong Tan for the council's discussion with Martin Scorsese's The Film Foundation, a non-profit organization dedicated to film preservation, about restoring the film. The film was selected to be screened in the Cannes Classics section of the 2015 Cannes Film Festival.