The police say she's guilty She insists she's innocent. She's your sister. You love her. You trusted her. But they say she killed the person you care about most. Martha last saw her sister when she left her babysitting. Now she's watching Becky stand trial for murder. They are on opposite sides of the courtroom, hearing evidence that's meant to finally bring the truth to light. What happened that night? And does Martha really want to know?