interesting vid. I have to agree with Andy here - the light anomaly moves around the way a draught would circulate - considering the door is open its highly probable its something reflecting from the infra-red like a cobweb been carried around by an air current. It follows a similar path back as it does travelling toward the right hand side too which lends weight to it being suspended on something not easily seen like a cobweb etc..Although this couldn't be confirmed without testing the air current from the doorway or other ventilation sources.
From a mediumship perspective there's something that stands out to me though - that of a young boy no older than 14/15. the name Jason / Jacob is applicable - i'm getting a connection to the 1920's - 1930's period of time. He passed over to the world of spirit not far away and says he comes here looking for someone.
Matt - Medium / Producer Stokehaunted