PHILLY HOUSE OF HORRORS: EXCLUSIVE FIRST PICS

THESE are the first shocking pictures of the House of Horrors where four mentally disabled people were forced to live by monsters, who cops allege wanted to cash their social security checks. 

As we reported yesterday three men and a woman, each with the mental capacity of no more than 10, were found living in squalid conditions, behind a locked steel door, in the sub-basement of an apartment building.