Popular pastry chef (Chi-lam) meets a nurse (Annie) and falls in love with her. Soon he realizes that she is an overly sensitive girlfriend who is also suspicious, jealous, controlling and slightly violent. She checks up on him 24-7 and screens his computer, phone, blogs and Facebook contents and messages. Desperate to get rid of his crazy love, he decides to start an investigation into her past to find out the secret behind her crazy behavior…

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.

The story follows the 10th anniversary of Bo and Keung. In the ten years, the couple has gone through quite a number of ups and downs. After trying to develop his career in the mainland, Keung has returned to work in Hong Kong while Bo has stayed in Hong Kong to run a wedding consultancy firm. Bo firmly believes that love is forever and has witnessed over the years numerous sweet stories of love bearing fruits. However in private, the love between her and Keung has long turned bland. Keung wants to have children but Bo cannot care less. Once again, the couple is plunged into emotional ebb. Meanwhile, the betrayals years back begin to emerge again…