Trouble Over a Lost Document

Angeline, a bright student is suddenly absent from school for three days.Out of concern,her three friends go to see her.They find her house locked and the walls sprayed with graffiti in paint. Her neighbour, too, does not know the family's whereabouts. It is said that strange men have been visiting the house. The girls decide to find Angeline. They land up in a squatters area and are just in time to see Angeline and her mother being taken away.What are they going to do to save thier friend?