Three sisters aged between seven and 15, who live alone as their mother vanishes for whole swathes of time, and when social services demand a family meeting, the eldest sister, Laura, plans to find a stand-in for their mother.Three sisters aged between seven and 15, who live alone as their mother vanishes for whole swathes of time, and when social services demand a family meeting, the eldest sister, Laura, plans to find a stand-in for their mother.