朱勇常被上級欺負，卻一直保護著剛入伍的菲力。外宿當天，上級想找出告發自己的下屬，最後懷疑到朱勇和菲力身上，並開始毆打他們。始終默默承受的朱勇和菲力，沒有開口供出告發者，直到菲力的牙齒遭打斷，上級才停止施暴。為了救回菲力的牙齒，朱勇帶著他去找牙醫姐夫，沒想到更大的噩夢在等著他們…...

One day, three siblings receive a postcard from their mother who left them a long time ago. But all it says is "I miss you." Three siblings are disconcerted by the sudden contact, but eventu...