Goofs

The bilingual shoulder badge of the border guard says "Duanes", instead of "Douanes".

Actual badges of Canadian customs officers show the terms "Services frontaliers - Border services" since 2003, not "Customs - Douanes"

The flag in the border office is not the right size - a Canadian flag is twice as long as it is wide.

Lapointe mentions that he requires his "Double double, with eight sugars and a dash of cream." A "double double" is a common way of ordering coffee in Tim Hortons (a very popular coffee chain in Canada) and refers to wanting your coffee with two creams and two sugars. The addition of "eight sugars" therefor makes no sense.

When visiting Howard in Lachute, Guy Lapointe introduces himself as an "inspector for the Sûreté du Québec ". SQ inspectors wear standard issue brownish policeman clothes with a badge in plain sight, they do not wear civilian clothes much less berets.

Guy Lapointe says that 'the bodies had no sexy time done to them.' However, in the same scene, he tells Ally and Teddy that a torso was found clogging the sewers, and mentions other body parts that were found as being all that were left of victims; It is practically impossible to conclude that no sexual abuse occurred with victims, from mere body parts being recovered from this serial killer.