Mankind has always looked to the stars, wondering what lay beyond them. Only rarely did we dare dream about what lived in the darkness between them.
A few people did, H.P. Lovecraft serving as a prime example of these people.
Since then, the Cthulhu Mythos has expanded greatly, to the point where people have often forgotten what actually forms the basis of some of these entities.
Unspeakable Cults looks to fix this, and re-introduce these alien beings and those insane enough to call to them for help.