mamma is a junky

Parents of a drug-addicted child often go through hell. They cause nuisance, often commit thefts, are chronically short of money and do everything they can to get money. They do not shy away from any means to achieve this: stealing, lying and cheating is their trademark. And they don't shy away from violence. But what if it is not the child, but one of the parents who are addicted? What then?