The main characters were played by Michael Tao, Joey Leung, Kenix Kwok and Louisa So.

[1] Cops Yung (Michael Tao) and Yee (Leung Wing Chung) were good friends as well as partners.

Their shrewdness and intelligence helped break many mysterious murder cases such as ‘Love Suicide’, ‘Chopped Corpse’, ‘Murderer Vs Victim’.

Yung, on the other hand, met the headstrong reporter Chit (Kenix Kwok) during an investigation and they fall for each other.

However, Chit already had a boyfriend... Jessie's Boss Wong Wai On's wifeKilled Lam Yan Mei and Peter Attempted to kill Jessie and Wong Wai On Shot by Tai Yung when she tried to run him over and drove off a cliff (Unknown whether she died from the gunshot or car crash)