Chill is a modern horror roleplaying game, originally published by Pacesetter Ltd, then revamped with a second edition by Mayfair Games. Otherworld Games is working on a 3rd edition. As a player, you take the role of a freshly recruited member of SAVE, a global secret society actively battling the creatures of the supernatural, collectively referred to as the Unknown. The battle is a secret one, as the world cannot know of the horrors that lurk in the shadows, thirsting for our souls. Your life and the continuance of everything you hold dear are at stake. Should you falter or fail, all will be lost to the Unknown. And remember - Evil never rests.
Chill is mainly a game of investigation and occult detective work, though it is flexible enough to include whatever type of horror genre the players wish. Brawn and brute force are rarely the answer to your problems, but the careful deployment of violence can often work wonders.
Frequently members of SAVE are left with mysterious supernatural abilities, referred to as the Art. These powers are a double-edged sword, for while they gift you with the ability to battle the Unknown on a more equal footing, they can also make you a target for the darkness.
Quoted (with additions) from Doc TOC's site. Visit the site for more information.