The world's ten most influential scientists are being mysteriously killed, one by one, spontaneously combusted, microwaved to death, or otherwise. Another scientist, software prodigy Dr. Ken, searches for clues to these bizarre happenings only to see his fiancee apparently return from the dead. As indications point to the end of the world, It appears that Dr. Ken may be the only one who can save humanity.

Skinflint businessman Richard (Leung) doesn't feel bad when he sacks his employees and secretary to cut unnecessary costs. He also doesn't bat an eyelid when his gold-digging girlfriend leaves after he refuses to give her money. She gets her revenge by cancelling his credit cards and giving away his furniture. Suddenly destitute, he's forced to rely on the generosity of Choi (Shu Qi), a good Samaritan who helps him out even though she thinks he's a scumbag who makes a habit of cheating women out of money.

Lucky Coffee Shop is well-known for its egg tarts and tea. Waiter Sui, named as Prince Egg Tart, attracts lots of girls but only loves Candy. He and his friends, Nam, and Fok, all have love problems. At the same time, the coffee shop may collapse since the landlord is increasing the rent tremendously. Let's see how the lucky guys of the shop can revert this situation.

Tung is a street cop in Hong Kong who's friends with a Triad named Fai. Fai hires a hit man to murder a business rival; the hit goes wrong and Fai, implicated in the incident, goes on the run.

An imperial guard and his three traitorous childhood friends ordered to hunt him down get accidentally buried and kept frozen in time. 400 years later, they are defrosted continuing the battle they left behind.