Two women investigate claims that the ghosts of six children who were murdered in their beds 100 years ago still haunt an Iowa house; a man in a haunted Maine house sees a ghost standing through a dining room table and a pair of legs dangling from a staircase; a woman's family and home are threatened when she encounters spirits trapped by a mysterious dark energy; and investigators at a former Texas bordello get audio evidence of "ghost sex" in one of the rooms.