Jason Cole, a brilliant neurosurgeon has to battle with his own alter-ego, Ian Price, in order to live a normal life in this modern take on Jekyll and Hyde.
Jason's brain surgery is about to begin, a neurotransmitter implant that will "cut out" Ian for good, however due to the blackout drug he has taken for years, Jason is immune to the normal anesthetic. A much stronger drug is given to Jason and in the midst of his twilight sleep he flashes back to his childhood and the origin of Ian Price is finally revealed. Meanwhile, Jordan and Lena are on separate tracks to uncover Jason's secrets all of which could prevent the surgery's completion.