Smart horror?- Smart Horror is usually very dramatic and occasionally slow. They rarely have to do with monsters or murderers, though some like Silence Of The Lambs, Mimic and Psycho, do. Most of these movies deal with the devil, Rosemary’s Baby, The Exorcist, Devil’s Advocate, or Inner Turmoil, The Apartment, Mouth Of Madness, and Event Horizon.
I prefer psychological. slashers are always "Who will survive?" Monster is just not realistic enough. Psychological can really get to you most