Download the PSD file and assets FREE here:http://downloads.psdbox.com/the-red-room-free-photoshop-manipulation/
Time code
0:00 – Intro
03:47 – Create the TV image
08:34 – Background adjustments
11:59 – Add blood on the wall using perspective grids
20:02 – Add the arms on the wall
30:03 – Adding the model
35:43 – Add the wheel chair
38:00 – Create the shadows of the model
43:15 – Create body shadows
47:05 – Create the evil eyes
01:00:48 – Create drool/saliva in Photoshop
01:13:18 – Create the final effects in Camera RAW

This is an advanced tutorial made with Photoshop CC but it can be done in any CC or CS6 version if you are an advanced user. The format of this tutorial is new, it is a premium tutorial but the resources and the PSD file are for premium members although you can also buy individually for each tutorial on the web members.psdbox.com/store.

Some of the resources used
Blood 1: http://depositphotos.com?ref=1027925/14760433/stock-photo-dripping-blood.html
Blood 2: https://depositphotos.com?ref=1027925/27819835/stock-photo-zombie-stretching-his-bloody-hands.html
Background: https://www.123rf.com/photo_111424727_dark-creepy-messy-room-with-broken-tv-set-in-abandoned-house.html