I'm making horror quest game for PC on Unity. I'm trying my best to make it kind of unique and trying not to use standard methods like screamers etc. What i want to do badly is camera recording simulation in-game - so you can leave creepy location anytime, and you will have a tape with what you recorded on camera while exploring. Technically, i need to attach second camera (hand-cam) to hand of character, and make the button to let player "look through the camera" by putting it to face. But in any position, hand-cam must record everything that is in focus right now - floor, stairs, rubbish, etc. when hand-cam "lowered", and everything player see, when it's "raised". When game ends (player leaves or dies), there's option to save recorded tape to video file (if this is not possible, then to some savegame file)
So question is - can i implement such feature in my game? If yes - how can i do this? Some special Unity tricks, or ad-dons and additional modules? Saving decorations and scenes with active triggers, or just grabbing video from screen?
Below is some quick MSPaint concept of what i mean.