Clare and her two pre-teen daughters, Grace and Pip, move into Virginia Terrace, a cluster of flats and houses surrounding a communal garden. It's a place where families feel safe and children can run free. Neighbours have known each other for years, and trust each other implicitly. But then, after the annual garden party - a glorious summer's day of getting together and enjoying a barbecue, listening to music, having a few glasses of wine, letting...