What the dead are silent about

Once, two teenage sisters, Sunny and Heather, did not return home. Gone without a trace. For many years, the police unsuccessfully sought them, and even the parents of the girls had already stopped hoping to see their daughters again ... And now, thirty years later, a woman who made sensational recognition fell into the police: she was a chizer, one of the sisters missing many years ago. Her mother urgently came to the site for identification. And then the oddities began. The arrested talked about such details of the childhood of two sisters, who seemed to have been to forget for a long time, but really important things did not remember at all ... Is this a chizer? And if not, then who is she and why gives himself up to her?