Yiu Chun-kit, a resident of Thailand, is visiting his twin brother, Yiu Chun-man, in Hong Kong. Borrowing his brother's car and driver's license, Chun-kit gets into a car accident, killing a pedestrian. Resulting from the accident, Chun-kit goes into a coma. For liability reasons, Chun-man will let the hospital think that it is him that is in a coma. Conversely, Chun-kit's girlfriend convinces Chun-man to take on his brother's persona to deal with some immediate financial issues back in Thailand, namely applying for a legitimate loan to pay off a loan shark. Beyond having to deal with an angry loan shark, Chun-man will have some problems pretending to be his brother as Chun-kit is straight and Chun-man is gay, with some stereotypically gay tendencies. Meanwhile back in Hong Kong, Chun-kit awakens from his coma having the world believe he is Chun-man, the world which includes Chun-man's boyfriend.
—Huggo