A world where the concept of good itself is considered eldritch and evil, and to worship the Elder Gods means to preform rituals of lending a helping hand to others, or cleaning up the environment, or even giving charity to the poor and defeated. It is a world where such things are alarming to the Higher Echelons, and thus the Righteous stand against their Perfect Society.
A mad cultist attempts to sacrifice a child to summon a dark God into this world. However, he didn't seem to investigate exactly what said Dark God values in a true offering.