Brighton 1963. Mary Pickles and I walked along the street with our arms linked, looking in shop windows. We were best friends and together we were invincible. Dottie and Mary forged a friendship over a bag of penny sweets when they were eight years old. They've shared everything together since then - the highs and lows of school, family dramas, hopes and dreams and now, at seventeen, they're both shop girls, working at Woolworths. As they go out in the world in pursuit of love and happiness, the simplicity of their childhood dissolves as life becomes more complicated. The heady excitement of first love will consume them both, but the pain of unintentional betrayal will test their friendship in ways neither of them could ever imagine.