I SET UP HIDDEN CAMERAS IN MY MOM'S HOUSE AFTER THINGS BEGAN TO DISAPPEAR, BUT WHAT I SAW STILL GIVES ME CHILLS. I did everything I could for my sister. I bent over backward to help her, to make her happy, but nothing ever seemed good enough. She was always dissatisfied, always wanted more. Then one day, I started noticing things disappearing—jewelry, keepsakes, and a few family treasures. They were just gone. I couldn't shake the feeling that it had to be my "golden sister," the one who always