An idea for a movie?
A legionnaire returns to Rome from the German frontier to discover that everyone in the insulae where his mother lives have succumbed to lead poisoning from the plumbing. The children are all suffering from cognitive and behavioural defects, the adults afflicted with short term memory loss and delirium. Its essentially a zombie film, in which he has to fight his way up the housing block to rescue his mother and then track down and exact revenge on the patrician who owns the development.