Tan Jing Tian and Jin Ling go to Thailand for an exchange program, where they meet Thai Chief Inspector Chai Vorarit through a case involving a prostitute's murder due to Indian butterfly smuggling. The three join forces to solve numerous bizarre cases. However, danger lurks around them. During the investigation of a serial murder case, they discover that Jin Ling is the killer's next target.
(Source: Youku; edited by MyDramaList)
