Luna, a crui se ship chamb ermaid,  has to qui t her job to at tend to her sick brot her. While d oing so, she  discove rs that he r mother has gone  missing and her bro ther's condition is getting progre ssively worse.  The sibl ings desperat ely sneak  into an emp ty condo unit  but soon discov er that Pentho use 77 is n ot what  it seems.！