From publisher blurb:
Stop the brutal sex cult from performing the ancient and evil ritual which will summonthe ancient demon of sex and murder, known only as HERZFUCK! You will find and enter the Rectal Temple of the cult, while racing to find and decypher their master's instructions to perform the ritual to banish HERZFUCK. For now.
HERZFUCK is a one-page role-playing game that includes character creation, player and GM rules, as well as a storyline generator that will have you chasing demon cultists all over the city of your choosing.