The last experiment the Doctor carried out on Kolya was the Needles Endurance Test. Having played enough with Kolya, the Doctor wanted new sensations and ordered Alex to prepare a new captive for him. It was Bogdan. Hoping to earn good money, he does not yet understand what a terrible person will cause pain to him.

14 minutes 4K video of fully naked Kolya is tormented by needles (including nipples) and presentation new captive Bogdan (also fully naked) for the Doctor