这是一个关于生存于平凡都市中的年轻男女与命运抗争的青春励志爱情故事。故事主要讲述了双胞胎姐妹初夏和萧瑾，因意外而重逢，却阴差阳错的爱上了同一个男生关昊，在历经重重磨难和生死考验后，代表正义的妹妹初夏带着友情和爱情走向一段别样历程，和爱人携手抗争命运，最终过上幸福的生活。 展现了年轻人对美好爱情的追求和坚守，以及对生活积极向上的追求与热爱。
As Leo's replacement Thomas Chamberlain arrives Nikki investigates the murders of Rachel Freedman, shot in the head, and her little autistic son Nathan, who was poisoned. Nikki rejects policewoman Anne Burchett's theory that Rachel killed them both but is perturbed when an impostor, claiming to be Rachel's sister, visits the morgue. At the same time the disfigured corpse of Eva Liron is discovered, killed with the same poison as Nathan. She had been the nanny to French hot shot footballer Isaac Dreyfus and was planning to blackmail him over a sex tape of them both. Jewish Isaac is a controversial figure due to his anti-Muslim sentiments but he denies ant part in the murders. Then another victim, Isaac's agent Mousa, is discovered dead.
该剧改编自横关大的小说，主人公是从性格、价值观到办案方针都截然不同的两名同父异母的刑警，他们将面对在池袋发生的凶恶案件。
知青白鸽（徐百卉饰）美丽、善良。因为闺蜜救自己而献出了生命，为了报恩，白鸽发誓照顾闺蜜的孩子，代替孩子的生母完成母亲的职责。为了养育孩子，外柔内刚的白鸽忍受着各种不解甚至羞辱，面对磨难含辛茹苦不离不弃，在经历了许多变故之后，最终让孩子在“多爸多妈”的大家庭中健康的长大……
警視庁捜査共助課的白戸崇正（玉木宏），擁有驚人的記憶力，可以記住3000名通緝犯的臉，借助該能力他可以在人海中搜尋犯人。有一日，他卻在人群中看到4年前已經死亡的前輩須波的臉。。。。。。
Shetland is BACK to answer all of the questions that left us hanging at the end of the last series.
