Amy, a young girl, is very curious and a little alarmed by the new sound that she all of a sudden begins to hear in her room. Is she dreaming it, or is it real?
Imagine hearing a soft "knock-knock" sound in your room in the dark of the night, followed by eerie, strange, and unexplainable things unfolding over time, with all reasonable explanations of them exhausted. What could it be?
Amy Tickle, a sixth grader, along with her friends Kat and Ben, believe that perhaps it is a spirit that is trapped in between the real and afterworld. They think that there may have been a tragic death in the past, either in Amy's home or near her home, and begin to investigate by going door to door, interviewing neighbors, not just on Amy's street alone, but on all the streets in her neighborhood.