Five Nights at Freddy's. A scary game involving haunted animatronics trying to kill the main character. But there are many questions about just who the main character is and why he keeps returning to his job, despite the immense danger.
The story is that the main character is working as a night guard in a pizza parlor named Freddy Fazbear's Pizza. However, prior to the beginning of the game, five children were murdered in the pizzeria, and it is believed that their bodies were stuffed into the animatronic suits. Parents began complaining about a foul oder coming from the suits, as well as blood and mucus accumulating around their eyes and mouths. The killer was promptly found and arrested, but it is believed that the five murdered children haunt the five animatronic suits, controlling them.
The theory for this game suggests that the main character, Mike Schmidt, is the murderer of the children, and that the game itself is all just a nightmare he is having while he awaits his execution. This is why he comes back night after night, as he is having the same dream every night. The fear of his execution causes his subconscious to unleash horrid nightmares on him, forcing him to live out his own personal hell every night.