A brilliant detective is forced into early retirement after losing eyesight. Making ends meet by solving cold cases for reward money, he teams up with a rookie lady inspector to solve a case from her personal past.
Kung (Eric Tsang) and Kin's (Jacky Cheung) rivalry goes way back to the seventies when they fought over the same girl, who eventually became Kung's wife (Anita Yuen). Now they run competing phone stores right across from each other on Mongkok's busiest street, and stretch their minds trying to outdo each other with crazy promotions. There's absolutely no mixing with the enemy in these parts - until Kung and Kin's kids fall for each other! Further chaos breaks out when the landlord triples the rent of all the shop owners to force them out for redevelopment.
A doctor falls in love with a mysterious young woman, unknowing that he has stepped in a paranormal world of a sinister past and the loss of innocent lives. He must find the true intentions about the young woman and bring those that did her and her family harm to justice.
Lawyer Jessica Yau finds out about her husband's money laundering scheme and gets shot in the head. She survives, but loses her memory. She is cared for by Mei Mei Chen, a nurse she screwed over in a lawsuit before being shot.
