This programme focuses on relationships. When things go wrong, more of us than ever are dialling 999, asking the emergency services to pick up the pieces and protect us from those we used to trust. An increasing number of 999 calls involve relatio... (more)nship disputes, but they're never easy to resolve. The emergency operators are inundated with petty, non-emergency calls, ranging from people falling out over what they're watching on telly, to others arguing about computer games and who gets to keep the kitten when they split up. But domestic arguments often erupt into violence - last year cases of domestic violence increased by an astonishing 35% within a single year. Cases include a man accused of punching his girlfriend outside a pub, while another man is left with a serious wound after being stabbed in the stomach with a broken bottle. Meanwhile PC Claire van Deurs Goss meets a heavily pregnant woman who claims to have been assaulted by her partner, but refuses to press charges. Another woman has been head-butted by her ex-boyfriend. For the emergency staff, it's heart-breaking that children are often caught up in their parents' fights, with some as young as six calling 999 for help. Paramedics Paul Atherton and Mandy Jenkinson are a couple as well as being life-saving colleagues. Paul's been popping the question for years, but will Mandy finally give in and say yes?