Doctor Rubinstein's office, as usual, was engulfed in beautiful thin smoke from incense sticks. The fireplace fire and the lamp on the table were the only sources of illumination, and there was no sunlight leaking into the office, because it was now late evening.

Veniamin Samoilovich sat at his desk, ending his working day by signing a couple of papers in his patients’ files. Suddenly his peace was interrupted by a knock on the door.

"Come in."