Overview: Three years ago, 35 year old fashion photographer David Murrell was told he had just months to live. A tumour the size of an orange was removed from his brain. It was the worst kind of highly aggressive cancer. But in a lucky coincidence his own father, a cell biologist, emerged as a possible saviour. Dr Wayne Murrell just happened to be part of a team in Norway working on an experimental vaccine for exactly that kind of tumour. "I'm a scientist, I don't believe in coincidence!" Dr Murrell says. But what happened next defied the odds...