Nick Holt and Marina Parker spent six months filming at Addenbrooke's Hospital in Cambridge with the doctors who negotiate the space between life and death.Nick Holt and Marina Parker spent six months filming at Addenbrooke's Hospital in Cambridge with the doctors who negotiate the space between life and death.Nick Holt and Marina Parker spent six months filming at Addenbrooke's Hospital in Cambridge with the doctors who negotiate the space between life and death.