When the seal on the metal coffer in Greenapple Acre Cottage was broken without the proper precaution, an entity was released from the burnt human ashes within and into the world.

It is a dark and stormy night on a lonesome road outside Arkham. The scenario involves a group of 2 to 5 investigators quite literally running into a chain of unnatural and nightmarish events that are a threat both to the lives and sanity of all who are entangled in them. Note that pure manpower is not likely to avail in the situation presented, as experience and old-fashioned guesswork will likely provide more value in this case.

Call of Cthulhu is typically set in the interwar period between 1919 and 1939. The Cthulhu Mythos, as it has come to be called, orignates with the writings of HP Lovecraft. Subsequently a number of other authors added to the corpus, which is why it is called the Cthulhu Mythos and not the Lovecraft Mythos. Many other RPG systems now exist set in the mythos, not always in the 1920s.

Call of Cthulhu is a game of cooperative investigation but unlike many other RPGs is quite dangerous. Sanity and your very life are always at risk. It is gritty and apart from the Fantasy Horror elements, aims to be quite realistic. A stab or a gunshot can kill you outright. However, smart investigation and care can mean all the investigators can survive and solve the mystery. Players used to high hitpoints and magic potions of healing may be disappointed.