Bo Jin Yan is an exceptionally intelligent criminal psychologist who has helped the FBI in the past and now assists the local police in solving difficult to solve murder mysteries. Jian Yao joins him as his assistant. They solve many murder mysteries together, only to find that many of these murders committed by different people were orchestrated by one person who wants Bo Jin Yan as his criminal partner. Mean while Bo JIn Yan and Jian Yao falls in love with each other. A very interesting plot, never boring story. A must watch for people who like murder mysteries. Watch it, you will never regret it.