It was about a rather "hyper" child - a boy of eight or nine years of age - who the parents are finding very problematic to deal with... some sort of investigator (my point of view) comes to the family's house, and the child opens the door. The child seems somewhat happy and hyper, and keeps talking, and then looks (maybe also points) at the investigator's left hand and says "that's where I would cut you". Then they mainly say goodbyes and the investigator leaves, thinking for himself, "it might be a demon, as well, after all".
In the next scene, the investigator is in bed, sleeping. Suddenly he gets an ominous dream that he interprets as if he should get out of the bed, so he wakes up and does, looks at the bed, finding it to look scary, in some way... he looks to the right side of it and then back towards the bed, again, and the mattress has now been bent in 90 degrees, by an invisible force. Startled, he thinks for himself that if he hadn't gotten up, he would've been bent, as well, getting a broken back.
End of dream