Adapted from the popular comic book "I am Mark". A magical workplace comedy film. It tells the story of a workplace slave Mark (played by Lo Kwong-chung) who works overtime every day, and finally the Grim Reaper A-Si (played by Huang Xuan) is ready to take him away. Unexpectedly, A-Si is also a workplace slave. Not only can he not take Mark away, but he also gets the wrong person because of confusion...