Gokudó kjófu daigekidžó: Gozu

What starts out as a gangster film spirals rapidly out of control when a young yakuza is ordered to assassinate his own superior, who also happens to be his closest friend. When his target disappears before he can do the job, he sets out for a search that leads him into a mysterious town filled with lowlifes, oddballs, and a cow-headed demon. (texto oficial de la distribuidora)