A very detailed prison facility for a supers-themed RPG, complete with maps, security systems, staff, and much more. The Big House is presented in a system-generic format that allows easy conversion to most any ruleset, and includes several story arc examples to give GMs some inspiration for their games. There are even prison roster forms, to help the GM keep track of the supervillains incarcerated within. The format is clear and easy to read, and the art is very good.