- Title: 破茧而出 / Po Jian Er Chu
- English Tittle: Metamorphosis
- Genre: Action, Police
- Episodes: 20
- Broadcast network: Mediacorp, Channel 8
- Broadcast period: 2007-Sep-18 to 2007-Oct-15
- Air time: Weekdays 21:00-22:00
- Theme song: Dou Shen(斗神) by Daren Tan
Power struggle within a notorious mafia gang led to the murder of several triad leaders. Before detectives Ouyang Li (Chen Han Wei) and Di Lun (Terence Cao) get to the killer, he was murdered. A series of chain murders occur where the dead are criminals.
This led the detectives to uncover an underground operation "Dragontooth", whose members mete out capital punishment on those they deem guilty.
Wen Wanrou (Yvonne Lim), a psychiatrist embroiled in a murder case, plots against Ouyang when he accidentally caused the death of her family. Ouyang is framed for murder and tries to clear his own name while on the run. As he gets closer to the truth, he discovers that Wanrou is also a member of the operation. At the same time, Wanrou becomes a target of "Dragontooth's" leader as she has failed to meet the doctrines of the organization.
Will Ouyang be able to uncover the secrets of "Dragontooth" and clear his name in this game of deceit?
- Rui En as An Xiao Qian
- Chen Han Wei as Ouyang Li
- Terence Cao as Di Lun
- Yvonne Lim as Wen Wan Rou
- Thomas Ong as Hu Xi Cun
- Chen Guo Hua as Cao Zhong Ming
- Ng Hui as Mya Sun Mei Ya
- Julian Hee as Da Meng (Meng Tian Bao)
- Hong Hui Fang as Ouyang Su