One night, during her usual shift as a late-night radio host, Darby receives a mysterious phone call from a woman who shares a chilling paranormal game with her.

Charlotte, a sleep-deprived new mother grappling with postpartum depression, begins to hear unsettling interference noises emanating from her baby monitor.

A woman studying for the MCAT finds her focus shattered when her automatic door lock mysteriously engages, hinting that she's not as alone as she thought.