Detective Gallo is, to all appearances, a detective who plays the tough guy. But in reality he’s a sociopath who undertook the career of investigator to overcome his biggest frustrations and innate repressed violence in a creative way.
This is the list of self-imposed regulations that Gallo created to channel his hate for the world in a sarcastic cynicism which characterizes every moment of his life.

This DLC can be found in your Steam folder in: \Steam\steamapps\common\Detective Gallo\Detective Gallo - Rules