Welp, this is Five Nights at Freddy's
You are a Night Watchman at Freddy Fazbear's Pizza, a Chuck-E-Cheese style establishment, Singing Animatronics, pizza for kids, and so on. Whilst it's a place where kiddies go during the day to have fun and party, you aren't here during the day, no, you're the Night Watchman After all, you gotta sit the night shift through to get your meager living, how else will the bills for your crappy apartment get paid?
What are you watching for? Burglars? Teenage no-do-gooders? No, you're keeping an eye on the Animatronics themselves, Now, the Animatronics are left in Free-Roaming mode at night so they don't break down more than they already have, they used to be able to during the day, but that ended up with one of the Animatronics being decommissioned and some poor soul without a frontal lobe.
This wouldn't be a problem, but the animatronics will stuff any naked endoskeleton (I know there are theories that they're just murderous, but I'll just go with this for now) into a Freddy Fazbaer suit, it won't damage an endoskeleton, but with all those wires 'n crap in the suits, imagine what they would do to a person? Speaking of a person, guess what the Animatronics think humans are? (hint: An Endoskeleton)
The establishment is in decline, after multiple lawsuits and events (including an infamous event where a man dressed up in a Freddy Fazbear costume and kidnapped and murdered children) it's low on funding, kids and their parents aren't as willing to come to if after the public events, and the whole thing is expected to be closed by the end of the year.
Because of this state, they have a limited nightly electricity budget meaning that you have only a limited amount of energy with which to do things such as check the cameras, light up the hallways that lead to your office, and close the doors to prevent the animatronics from stuffing you into a suit, with limited power comes with the fact that closing the doors would mean you're wasting it, and you thus need to leave yourself exposed if you don't want the power to go off as Freddy sings to you his Toreador music box before he ends your night abruptly.
The game has a dark setting, a terrifying atmosphere, and is a great title, everything from the dark hallways to the animatronics themselves, everything about this game is great, you're going to be blown away by the subtle yet terrifying world this game is set in, with rumors still circulating about its mystical yet dark plot and background of Freddy Fazbear's Pizza, you're going to love Five Nights at Freddy's.