Create a new file of 300 x 300 pixel size having 72 dpi resolution and setting the mode to RGB. Now, if you haven't changed the background and foreground colors to default, then do it now by pressing 'D'.
Go to filter>Render>Clouds. You will have something like this :
Paste your favorite image above the first layer :
Change this layer's blending mode to Color Burn.
Press Control+E to merge these two layers. Duplicate the new layer and press shift+ctrl+u to Desaturate :
Change this layer's blending mode to Hard light.
Again group and merge the two layers. Now, use dodge tool
. Set the range to Highlights and drag the tool over the eyes and lips. Our Horror image is ready :)