The Bodyguard

The film is set in the 2000s in a medium-sized Chinese city located in northeast China, close to the China-Russia border. An old, overweight man named Ding witnesses a man being stabbed by a gang, but when he is summoned by the police to identify the suspect, he hesitates and is unable to. The police research Ding's background and discover that he is a retired Central Security Bureau officer from Beijing, and they figure that he is suffering from dementia. Back at his home, Ding is frequently invited for supper by his land-lord, Park, an elderly lady who is attracted to him. Ding, in turn, frequently cares for a little girl next door named Cherry, whose father, Li, is an abusive gambling addiction.