波皮(莎莉·霍金斯 Sally Hawkins 饰)已经三十岁了,她是个普通的小学教师,没有房子,没有存款,仍旧单身,不再年轻也就不再漂亮……但是与沮丧现实相反的,是波皮极端乐观的个性,她明媚开朗得像涉世未深的孩子,甚至在一些外人眼里亢奋得不大正常。她练习蹦床,却遭到肌 肉拉伤,方知自己年龄已经不适合这项运动,只好改学弗拉门戈舞;她去学车打算考驾照,却因为表现得太过活泼亲热,引来严肃的学车教练斯考特(艾迪·马森 Eddie Marsan 饰)愤怒爆发,认为她在挑逗他……波皮“无忧无虑”的性格,不符合年龄的乐观,似乎已经与周围的一切格格不入……Poppy Cross is happy-go-lucky. At 30, she lives in Camden: cheeky, playful, frank while funny, and talkative to strangers. She's a conscientious and exuberant primary-school teacher, flatmates with Zoe, her long-time friend; she's close to one sister, and not so close to another. In this slice of life story, we watch her take driving lessons from Scott, a dour and tightly-wound instructor, take classes in flamenco dance from a fiery Spaniard, encounter a tramp in the night, and sort out a student's aggressive behavior with a social worker's help. Along the way, we wonder if her open attitude puts her at risk of misunderstanding or worse. What is the root of happiness?