On Halloween night in 2004, three roommates spent the evening handing out candy to trick-or-treaters before going to bed. A few hours later, Lauren Meanza was awoken to the sounds of the screams of her roommates, Adriane Insogna and Leslie Mazzara, above her. As she opened her bedroom door, she heard whoever had been attacking her friends coming down the staircase toward her, so she bolted out the backdoor. Leslie and Adriane would be found brutally murdered in an upstairs bedroom, and Lauren would live tormented by the survivors' guilt from that night. The investigation would bring to light that their killer was a lot closer to the girls than anyone could have imagined.