Years ago, Kara Hui almost poisoned her son (Vincent Wong) and daughter (Joey Thye) because of her schizophrenia. Experiencing great change, Vincent develops an alter-ego who is physically weak but highly intelligent. His alter-ego works hard and becomes a handwriting expert, helping the agile Vincent carry out his undercover mission. A double bomb case and a case featuring bloody words on a nude corpse prompts Chief Inspector Chris Lai to create a task force to find the perpetrator. The task force includes Vincent, psychiatrist Benjamin Yuen, bomb disposal officer Mandy Wong, and forensic entomologist Venus Wong. The four of them get involved in a love pentagon! The “Father of Criminal Investigation” Philip Keung has recovered from bipolar disorder and is appointed to lead the task force as they investigate various mysterious cases. But he discovers Kara may be involved in the mystery behind his wife's (Alice Chan) disappearance. As the puzzle is revealed piece-by-piece, how will they each face the truth?
An non-photoshopped look at the poster: