Forget the rest! Hilda Koronel's magnificent performance as the title character is enough to recommend this tale of rape and revenge, seduction and squalor, power and poverty. Hilda lives in a slum in Manila, maltreated by her domineering mother (Mona Lisa). Her mother has a lover (Ruel Vernal) old enough to be her son. Vernal, doing the lover bit because Lisa holds the household money, has his eyes set on Insiang. He rapes her but Insiang turns things around, getting Vernal to be her parasitic paramour. Great film noir, great performances.