Watch this:

Read this:

Wot I Think: TRIHAYWBFRFYH

Then go here and download it for your OS of choice (or, less advisedly, try playing it in-browser). As the RPS verdict notes, make sure you play with shadows on, and crank up the sound a little. It lasts 20 minutes, no more or less.

Ominous. Very. And the Lovecraft is well-picked.