Longtime friends Lau Tak-wing and Chai Hing-chau are eager to be admitted into the Artist Training Programs. In their pursuit for stardom, the pair is joined by Keung Chi-ngan and actress/showbiz baby Wan Chor-yue, among others. Hing-chau struggles to fulfill his ambitions as he’s constantly passed over for roles. Tak-wing becomes an overnight sensation with his most recent role. As their career trajectories go in different directions, their paths continue to inexplicably intersect. As life would have it, their love lives would also take a turn. Tak-wing always has the biggest crush on Chi-ngan’s elder sister Keung Chi-yin. Eventually, he realized his true feelings is with Chi-ngan all along. When Hing-chau finally gets his break with his slapstick comedy routine, his career skyrockets but his relationship with Chor-yue becomes as fragile as ever. To make matters even worse, a feud over contract renewals push Tak-wing and Hing- chau to the tipping point of ending their friendship……

Yeung Pik Sum suffers from Schizophrenia and her illness causes her son, Yip King Fung, to suffer from Dissociative Identity Disorder. King Fung’s split personality, Chu Kei, becomes a handwriting expert and criminal profiler, who helps King-fung, an undercover agent, to uproot a criminal organization. However, a series of strange cases makes King Fung a murder suspect and his younger sister to be traumatized. Feeling guilty about abandoning her children, Pik Sum becomes a mental hospital assistant to protect her daughter, but she is unable to reconcile with King Fung... Superintendent Lip Shan invites King Fung to join the Special Crime Unit. Together with psychiatrist Wai Yui Kit, bomb disposal expert Yau Ngan Sing, forensic anthropologist Fong Yuen Chin, they deal with criminals with abnormal psychological conditions and solve complicated cases.