民国初年,租界警员阿莱被穷凶极恶的帮派追杀,命悬一线之际,被一名凭空闪现的神秘女子露娜所救。露娜为此身受重伤,昏迷不醒。阿莱调查露娜的身份,却查无此人。阿莱用她随身携带的十二本漫画书,为她讲故事,想以此唤醒救命恩人。没想到每一个故事,都与阿莱所经手的案件有关,甚至可以指引阿莱找到破案关键。阿莱越发期待露娜醒来。阿莱因为破案有功,被升职加薪,却也暗暗惹上了仇家。阿莱通过线索发现了露娜的秘密。当其中一本漫画被读完,露娜醒了过来。二人互生情愫,阿莱的仇家也蠢蠢欲动。最终,阿莱在露娜的帮助下找回了平和单纯的自己和做警察的初心。。40-year-old Amelia who is hit by a bus on her birthday. When she wakes up, she suddenly finds the year is 2002 and Amelia is 18 again - allowing her to right all the mistakes she made the first time round.But as she finds herself stuck in a "Groundhog Day" time loop - waking up every morning on her 18th birthday - she realizes there's something else going on that will need to b...。