Dream About Empty Cafe And Locked Doors

I live with my parents in a house like one in interstellar, dusty one. I say I'm going out for a walk and go to a cafe where noone goes. It was empty at first and no lights. The owner came and turned on the lights. We chatted a little and then mom came over to take me back. I stayed there and explored the place while mom was talking with the middle-aged owner and the maid. I found many doors. One was tied to a fat ahh chain whose other end was tied to the ceiling of other door and the closed door was filled with directioned algae.