Released after 20 years in prison, ex-con Charlie Sundstrom (Bailey Chase) returns to his home town to find that his estranged son, who has disappeared into the criminal underworld, is being hunted by a ruthless gang leader. Charlie enlists the help of a rogue corrections officer (Dylan Baker), to help in the search. But the corrections officer has a tragic past of his own. Soon their desperate lives will clash in a game-changing climax. In the tradition of films like 'Se7en', 'The Usual Suspects' and 'Angel Heart', 'No Beast So Fierce' draws much of its meaning and power from its shocking ending.

Um escritor bem-intencionado, mas lutador, decide levar uma espécie de vida dupla fingindo ser um detetive particular usando os métodos sobre os quais leu em romances policiais antigos.