Teenagers are no longer like little children unable to control their behavior, and they are not like elderly people who forget their way back home. What causes them to suddenly disappear, or run away from home?
青少年，他們已非沒有行為自主能力的兒童，也不是失智找不到歸途的老人，卻不預警地失蹤、逃家，究竟所為何來？