The Butterfly Effect

Growing up, Evan Treborn and his friends, Lenny Kagan and Kayleigh Miller, and Kayleigh's brother Tommy, suffered many severe psychological traumas that frequently caused Evan to blackout. These traumas include being coerced to take part in child pornography by Kayleigh and Tommy's father, George Miller; being nearly strangled to death by his institutionalized father, Jason Treborn, who is then killed in front of him by guards; accidentally killing a mother and her infant daughter while playing with dynamite with his friends; and seeing his dog burned alive by Tommy.