Should we pass a law allowing doctors to help people end their lives? After the election MPs will vote on whether to legalise euthanasia. But big questions remain - that could fundamentally change our society. Is helping someone to die a compassionate act which allows dignity in death? Or does it legitimise a risky option that could endanger the vulnerable? We meet an unlikely advocate for assisted dying who reveals, for the first time, why he believes we have the right to die, on our own terms.