The third daughter, Princess Chiu Yeung, of the Tang Emperor, is known throughout the kingdom for her beauty, but she is also known for her unreasonable and stubborn personality. For this reason, no one wants to marry her - that is, until the second son of the formerly wealthy Kam family, Kam Dor Luk, is persuaded to marry her to save the family business. Princess Chiu Yeung resists the arrangement but realizes that it is a better alternative than being forced to marry the Tibetan king as schemed by her father's evil concubine. When the princess moves in with her personal servants after the marriage, family drama and conflict ensues, but is Princess Chiu Yeung stubborn enough to stay and win the heart of her new husband?

香港法证部高级化验师高安（黄浩然饰）、法医科高级医生闻家希（李施嬅饰）、西九龙重案组高級督察郭辉煌（谭俊彦饰），这「灭罪铁三角」带领着精英团队，用专业的法证科学，揭示惊人的预谋策划；用精密的法医知识，破解隐蔽的人体密码；用严谨的执法精神，披露震撼的罪恶真相！热血记者徐意（汤洛雯饰），童年憾事竟与高安紧扣牵连；法证专才水慧明（陈炜饰），遭至爱背叛顿成杀人疑凶；警队精英高靖（朱晨丽饰），锲而不舍追寻亲人被诱拐真相......

　　谜团奇案，重重交错；冷血凶徒，幕幕惊心！人在做，天在看！「灭罪铁三角」坚守「邪不胜正，恶不抵善」的信念，誓为死者发声，替生者雪冤！