Unriddle 2 (2012)

Original title: 最火搭档 2

Unriddle 2 is a Singaporean Chinese drama. This drama serial consists of 20 episodes. It is a sequel to Unriddle, one of the first sequels in Mediacorp dramas in nearly 10 years. The sequel is also noted for its much darker tone as compared to the first series. As detective Xiaoman and her informant partner Zhengyi continue to solve bizarre crimes, the investigations become increasingly personal for the pair.