Travis Lytle’s review published on Letterboxd:
"We Need to Talk About Kevin" is by no means a traditional, linear narrative. It is assembled out of linear and chronological order: we are seeing pieces of a puzzle, interpolating how the pieces may come together in the end. These pieces are riveting and, in the end, form a horror story without the histrionics of the genre. They form a film awash in guilt, tension, and dread; and they form a well-acted, tragic portrait of evil. Metaphorically rich and visually vibrant, "We Need to Talk About Kevin" is haunting, unsettling, and harrowing; moreover, it will not be easily forgotten.