慢活干探丁志摩带领的“杂项调查小队”(ME)，专门处理琐碎案件，与世无争。直至急进派“大肚婆”龙丽莎加入，争住做队中“尸王”，从此改写小队的命运。丽莎破案“无底线”，跟志摩的作风大相径庭，两人在查案过程中一直互不咬弦。车奕晨为面子当差，却因失误致同袍伤残，自此散漫成性。他在ME却重遇旧情人谷芷晴，并与警队小鲜肉李俊基，展开三角关系。一次行动，揭露志摩多年秘密，加上奕晨之失误，令丽莎陷于生死关头……
阴间见习判官（谢天华饰）因不满庄玉雪（陈妙瑛饰）、方家希（梅小惠饰）的命运安排，擅自更改了二人的生死册，闯下弥天大祸逃往到阳间，恰遇戴耀东（张达明饰）车祸身亡。戴耀东弥留之间借尾还魂，从此改变了戴耀东一生……
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.
