Dark side of the human mind.
God? Satan? Who knows?
All kind of good music. From metal music (thrash, black, death, brutal, gothic, grind, doom, etc..) to electronic music (industrial, EBM, Darkwave, electro-dark, noise, etc...).
I love almost all Zombies movies!!!
Take a look here and you will have an idea about what I mean: http://en.wikipedia.org/wiki/List_of_zombie_films
George A. Romero, John A. Russo, Dario Argento, Amando de Ossorio, Lucio Fulci, Edgar Wright, Tom Savini, Zack Snyder, Steve Miner, Dan O'Bannon, Ken Wiederhorn, Brian Yuzna, Ellory Elkayem, Ana Clavell, James Glenn Dudelson, Jeff Broadstreet, Kevin S. O'Brien, ...
A Clockwork Orange, Natural Born Killers, Solaris, 28 Days Later, Saw I (only the first one), Pulp Fiction, The Ring, Amadeus, etc...
And great classics like: Evil Dead (all) , Phantasma (all), Texas Chainsaw, etc...
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A lot of authors: Anne Rice, Poe, Nietzsche, Baudelaire, Bukowsky, Marques de Sade, Stephen King, and more and more..........
Myself...