New Delhi: Actor Purab Kohli is all set for his next Bollywood film that is ‘Rock On 2’, and will be seen in the upcoming TV series, Prisoners of War. But do you know that Purab was so engrossed in the show and immersed himself in the show so much by watching torturous videos as he plays a prisoner. He also had to shoot many sequences that he immersed himself completely into the role. Reportedly, Purab had to later consult a psychiatrist as he wasn’t able to get back to his regular life due to depression.