A friendly St. Bernard named "Cujo" contracts rabies and conducts a reign of terror on a small American town.

A werewolf loose in Los Angeles changes the lives of three young adults who, after being mauled by the beast, learn that the only way to break the curse put upon them is to kill the one who started it all.

The residents of vacation spot Seal Island find themselves terrorized by a pack of dogs -- the remnants of discarded pets by visiting vacationers.

A woman is pursued by her murderous, psychopathic twin sister in the days leading up to their birthday.

In a remote village governed by Village Chief Sanoh, there is no dogs except Choke, a clever and loveable black dog. One day, the villager found the corpse that appeared to be bitten by a mad dog. What will happen to Choke after this?

Adolfo has everything under control, until he is bitten by an apparently rabid dog and madness breaks out in his home. Her niece María is the one who must take charge of the situation and overcome her fears of authority.