A Place for Annie (1994)

Baby Annie (Kathy and Leslie Anderson) is H.I.V. positive and has been left in the clinic by her drug addicted mother, Linda (Mary-Louise Parker). To stop her from being taken to a home where they'd just wait for her to die, nurse Susan Lansing (Sissy Spacek) takes charge of Annie, and takes her home. Two years later, she plans to adopt her -- but suddenly, Annie's mother reappears and demands her back. And under the law, Susan, as a foster mother, has no claim to the child.