Idea: one of the corridoors between the morgue and the furnace/crematorium. along the polished walls, when the corpse is pushed along the corridoor, there will appear the reflection of the dead, at a random stage of their lives. it will then… hm…
interact/try to talk with the carrier? plead/bargain with the carrier?
claw at the walls trying to get out?
simply walk forward as the body is pushed?
be dragged along as the bodycart is pushed by, as if by a rope pulling from the end of the corridoor?