Man was born in Macao, he is brought up by his mother in Mainland China. He went back to Macao after his mother died. Man worked as a postman in Macao. He is responsible and hardworking, trying his best to get familiar with his job. One day, he met a girl, Twelve, while he was delivering letter to a bar. Man and Twelve somehow lived together later. After some days, Man found something strange about Twelve. What was she doing? What had he done? Life still goes on and things needed to be solved. While getting to know each other better; who would guess that due to a parcel, they found out......