A man is robbed while making a call in a phone booth. Staggering in the middle of the road from the beating by the thieves, he is then struck by a car driving by a woman named Oom. Feeling sorry for him, Oom brings the man to her apartment and gives him shelter. The man, it turns out, has developed amnesia. Based the name on a pendant the man is wearing – his only possession – Oom names him Tan. A doctor's examination reveals that Tan is uninjured except that he can't remember anything about his life prior to being struck by Oom's car. Tan is given a journal and urged to free associate in an effort to recall his past life.