To my surprise, the barber shop was actually working there. Two guys in the special chairs, in front of a large mirror, were being shaved by two older gentlemen in aprons. Those guys had towels wrapped around them and watched our reflections very closely.
We got taken to the back, where three more guys were playing cards at the small table, with a lamp in the middle, providing the light. It was a small space with no windows.
The guard guided us up to a staircase on the right, just past the poker amateurs, and we began climbing them, still being watched carefully by the new group. We ended up in a short corridor with a set of two doors on both left and right. There was also another one in front of us, at the end of that corridor. We were taken there.