Four Nights of Truth

Roberto's life is a mess. It seems that the only option left for him is to waste it.
He has become a cynical, unhealthy, terrible person. Metaphorically speaking, a goblin.
Late one night, a mysterious madman approaches him and offers him a job. He will become a veritable social health operation goblin in the nursing home he owns.
Roberto has nothing left and is curious to know what truth is hidden in the words of this strange man, so he accepts the offer.