Kate stars opposite Richie Ren (or Jen, depending on what rocks your boat), as couple Rachel and Fat. They're the atypical modern day couple living it up in Beijing, though the latter is suspect of the former's promiscuity. He loathes the time when he has to bring his girlfriend back to the village to meet his parents, and to get the stamp of approval from his father (played by Yuen Wah). So they device a plan, and that is to look for a substitute girlfriend (hence the title Contract Lover), whose mission is to be as disgusting as possible, so that Dad will tell Fat to find anyone else better than the current beau, and hence, for Fat to introduce Rachel.

In the city, the family of Chen Xiaodi, an ordinary citizen, lives a peaceful and carefree life. The stalwart and courageous father, Chen Weilin, can't resist the temptation of generous cash prizes, and brings the whole family to participate in the "Family Mobilization". The agile and flexible Da Di, the horse-footed Xiao Di, the fat and bloated mom, the ghostly and elfin grandmother all join the "Chen's family warrior team". With victory in sight, the brave father is scared out of his wits by a small hedgehog doll. Sadly, Di proposes to go to the legendary "Hoggett's" kingdom, where there is a mysterious snow globe that can eat up "unhappy memories". By mistake, the family arrives at the marvelous Animal Kingdom. Here animals can judge humans! After a life-and-death escape, Xiaodi's family finally finds the legendary snow globe, but his father, who is one step ahead of them, has lost his memory, and the whole family becomes strangers in a flash. What will happen to the Di family?

Three best friends who are barely getting by as fishermen seek their fate in 1930s Shanghai. Upon arriving in the bustling city, the naïve trio gradually find their innocence corrupted as they fall into the deepest depths of the criminal underworld.