Strongest supporter, best friend, expert, cheerleader and chief photographer. . Before, during and after labour the role of a midwife is second to none.The Secret Midwife reveals the highs and lows on the frontline of the maternity unit, from the mother who tries to give herself a DIY caesarean to the baby born into witness protection, and from surprise infants that arrive down toilets to ones that turn up in the lift.