Shield of Straw (藁の楯 Wara no Tate?) is a 2013 Japanese thriller film directed by Takashi Miike.
When multi-billionaire Ninagawa believes his granddaughter has been killed by a man named Kunihide Kiyomaru, he places an ad in all the major newspapers offering 1 billion Yen to the person who can kill him. Terrified, Kiyomaru quickly turns himself in to the Fukuoka Police.
Now, with only a handful of cops for protection Kiyomaru must be transported back to Tokyo, where no one knows where the next bullet will come from.