Five graduates from different years come together to celebrate their secondary school teacher Master Jude's 80 year-old birthday. Master Jude is a happy-go-lucky bachelor who enlightened them on the matter of sex during their school days. Since all of the five men have marital problems, this is a good time for them to meet and share their grievances. However, during the celebration party held in a hotel, they encounter 5 pretty, sexy young models. They fall for each other and have a love-fest in the hotel.

The story begins with three men from different walks of life who lead very ordinary lives in Hong Kong but all have something in common - single and desperate for love. They decide to travel to Hainan, China, in search of love. On their adventure, they suffer plenty of bad luck, one after another, but love may just be around the corner.

Television scriptwriter Hung is the boyfriend of TV host Rose , a domineering woman who talks on the phone with somebody else while having sex with him. Sean has a physique that gets him likened to Kung Fu Panda and the Hamburglar, and is generally a loser in the game of love. Then there's Shing, a lothario who attracts more than his fair share of women, but whose heart is set on an unattainable woman with a past in the form of nightclub hostess Miss Poon. The three men meet at the funeral of Wong Chun-chun, a woman all of them have been involved with at different points in her life. Various assorted incidents lead to their becoming friends who can be called upon to help sort out each other's increasingly complex relationship woes.

During Bo and Cheong's wedding reception, a video clip intending to show their journey of love suddenly flashes a clip of Cheong being intimate with another woman. This leads to the cancellation of the wedding. A year has passed and the single Bo and flirty Cheong maintains their relationship as good friends. One day, the womanizer Cheong brings the conservative Bo to a wife swapping party, at the party, they meet Kit and his wife Man Lai. The four developed a romantic and passionate relationship.

A university swimmer's sudden death sparks suspicions among classmates, leading her friend and rival to uncover chilling secrets lurking beneath the surface; A young man's infatuation with a nearby sculptor takes a sinister turn as he delves deeper into her world, revealing unsettling truths; An editor's pursuit of romance with his assistant turns perilous when a series of accidents, linked to mysterious wishing sheets, haunt him and his friends.

Kiki, a sexy and charming OL, will be married to her cop boyfriend Sean in a week. During the hen night, Kiki encounters a handsome photographer named Jack and falls head over heels for him.

Wong Jing's Classroom follows Ling, the new substitute teacher at a suburban high school. She feels something wrong about her class. The students in her Class 4E are an unruly bunch, except for Don Don, who always sits quietly in the corner. Suspecting that her students Gi Gi, Co Co, and Fong engage in prostitution, Ling reports the problems with her class to the dean, only to be told that there has never been a Class 4E in the school... In Patrick Kong's Travel, a group of friends go on vacation in Mainland, during which Bo gets killed in a road accident. At Bo's funeral, her travel mates meet Bo's estranged lover Ka Ming , with whom Bo had a heated quarrel on the phone just prior to her tragic death. At the hot-pot dinner after the funeral, a pale-faced Ka Ming reveals to the survivors the secret of his relationship with Bo before going on a killing spree...

Three troubled young girls will do anything to escape their stifling lives - even if it means turning to drugs and prostitution. Set in the generation of smartphones and web 2.0, the technology may have made communication easier than ever, but cautionary tales of misunderstood youths remain as relevant as they were two decades ago.