A solitary middle-aged men over sixty choice hold the inflatable doll jump off building. Because the baby first fall and saved a life. He said: lonely and public opinion to kill him. The seller to sell him the doll young Ding (Tang Zhengang decoration), the girl was living alone in the room, never had a girlfriend, every day hold the baby to sleep, his only wish is to be with the customers photo won the grand prize, can take the landlord granddaughter to go to Japan to find his mother. A thirty year old B coffee actor Nobita (Zhou Yongxuan decoration), ten years of struggle, but because a vulgar advertising star, he hates this advertisement, more hate after popular pop out mother. One day, Xiao Ding was accidentally put his most loved doll sent to the wrong actor, he began to crazy to recover, also began to enter people's loneliness. Love inflatable doll? No, just a simple Oedipus complex. He collected the city's lonely, not be understand lonely.