5150 Elm's Way (2009) on Netflix

Plot summary

Yannick Bérubé arrives in a small town to study cinema. When he falls from his bike on Elm's Way, a calm street, he knocks on the Beaulieu door to call a cab home. Inside the house he hears a man screaming upstairs and finds that Jacques Beaulieu has wounded the man and holds him hostage. Fearing a call to the police, Beaulieu locks Yannick in. Yannick has done nothing wrong. Beaulieu sees himself as righteous. He is a fanatical chess player who targets people he judges to be evil, among them drug dealers and pedophiles, and kills them for a better world.