Decisions, decisions

We've decided we're doing horror, and the more research we do, the more we're discovering how many different kinds of horror movies there are. To further narrow down our many plot ideas, we've decided on narrowing down what sub-genre we're going to focus on.
 Since we don't want our film to be too cliche and do want it to be realistic, we've decided on either psychological or killer.
Within psychological, we have:
Phobia: deal with general fears among common people (ex. IT, Buried, Birds)
Madness & Paranoia: deal with the main killer and the insanity of them; deals with the paranoia and uncomfortableness of the victim (ex. Rosemary's Baby, Shutter Island)
Within killer, we have:
Slasher: aggressive, gore-y murders, with the murders usually in disguise (ex. Halloween, A Nightmare on Elm Street)
Home Invasion & Survival: deal with victims being targeted in their own homes; especially scary because it takes away the comfort of your home (ex. You're Next, A Clockwork Orange, Cape Fear)

Narrowing down our sub-genre to these few with help us to narrow down our plot ideas. While we do want our film to be realistic, we really want to scare our audience, so we're thinking about incorporating some more gruesome ideas, like cannibalism or otherwise. This leaves the audience shocked and terrified, just how we like it.

Barone, Matt. "The 25 Best Slasher Movies." Complex. N.p., 25 Oct. 2015. Web. 12 Mar. 2016. 

Corel, Jim. "Phobia Fest: Matching 25 Films with Fears." Pastemagazine.com. Paste, 27 Oct. 2014. Web. 12 Mar. 2016. 

"Horror Genres and Sub-genres - Popcorn Horror." Popcorn Horror. Horror on Screen, 16 Mar. 2014. Web. 12 Mar. 2016. 

Lambie, Ryan. "Top 10 Paranoia-filled Movies." Den of Geek. N.p., 13 June 2011. Web. 12 Mar. 2016. 

"9 Terrifying Home Invasion Movies You'll Never Forget." Indiewire. N.p., 10 Sept. 2015. Web. 12 Mar. 2016.