Possible ghost or look into another dimension

Picture was enlarged by us, and darkened/contrast increased

Dave wrote: This picture was taken in 1993 when me and some of my friends got together to go to a concert. The photo was taken in the upper flat of a house that was over 100 years old. I had been living there for about a year, at the time, and had experienced nothing out of the ordinary. At the time the picture was taken, nothing that can be seen in the photograph was evident to us. Not until the film was developed did we notice the obvious images. I lived in the flat for another year after the photo was taken and never experienced anything out of the ordinary.