Mondo Bungle

I'd need to work out hella kinks but I wonder if I'm onto a cool scifi body horror premise

There's two scientists that are addicted to painkillers, and it gets real ugly for one of them and he resorts to extreme self injury to get a new/refill his prescriptions, while the other watches it and just wants to help him. Further along the self harm just gets gnarlier to the point that he starts needing more and more prosthetic limbs and other synthetic parts, and his colleague is simply terrified watching him become more machine than man. So with all this mechanical stuff keeping him alive, the regular drugs become ineffective, whats left of his nerves are shot, and there is no sensation to be felt in the majority of his body, and now he starts a series of experiments jacking all kinds of electrical items into his person in search of a new rush.

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