Endless Inside Windows game

Year 1992: Lossmond University is an old art university actually closed. The university is closed since 1985 due strange activity, sounds under floors and disappeared material inside. The only section that works nowadays is the auditorium and backstage - for shows by people in the city. You're Mathew, a maintenance concierge, who must enter at night to the building due a light failure and repair it. What he dosen't know is he will discover the beings who makes that strange sounds and who've stolen the material. He will had a great time moving in dusty and dirty sites, sometimes with a flashlight or into a total darkness with different beings that will try to catch him. Their souls are trapped like forgotten objects. Their laughs are hopeless cries.