Watch the bottom right, closely, as a hand reaches into the video frame and tries to grab the ghost hunter. We were sent the video by ZsuZsana of Spirit Matters Media.
After receiving the ghost video, we made it lighter and repeat multiple times to improve viewing of the hand. It's quick as it opens up toward the ZsuZsana in the video. The hand is well below chair railing, making it an odd place for a person to have done this without getting low to the ground. Zsuzsana told us that she was dowsing at the time and did not see the ghost hand until she watched the video.