Person in vintage attire spotted near damaged Sestroretsk building

The video shows a person dressed in vintage clothing standing in front of a brick building with large windows, one of which is broken. The person is wearing a brown jacket, light pants, and a dark cap. They are holding a small box and appear to be looking at something in their hand. Another person is lying on the ground in the overgrown grass nearby. The building looks old and possibly abandoned, with peeling paint on the window frames. There's a glimpse of film set equipment in the corner. The scene is captured in daylight.