Zhou Xun. She's a frigid geeky scientist who invents a love potion, essentially extracting pheromones and then wearing them like a smoker's patch. The patches get tossed around among the three ladies and/or the objects of their desire. Kwai Lunmei is great as a punk rocker who eventually meets her imaginary boyfriend, and a pleasant surprise is Kitty Zhang Yuqi (from CJ7) who plays a high powered sexuality exuding executive who wants to market the patches. This is a goofy film full of sight gags, not to be taken seriously. An average film, flawed, but worth wasting time on just to watch three lovely ladies having fun.