The movie takes an interesting look at social work. It starts with the social worker doing what anyone might have done at a crime scene. She picked up the murder weapon to see it dripping with blood. It's the kind of thing that social workers might use to anticipate unexpected situations. The door was open. No one answered the inquiries. A butcher knife was covered with blood when no meat was out. Call the police and report a suspected homicide!Another scene shows an abusive alcoholic yelling at the social worker and accusing her of breaking up the family. While she was sitting in her car in a garage after having left the site he hit her window and threatened to harm her. (12:35) He said that he was going to get her and demanded that she get out of the car. She should have reported the threat of assault to the police. It would have been a valid justification for requesting a police escort to the site on the next visit.