呈現發生在美國加州聖塔芭芭拉共7死13傷的殘忍屠殺，兇手艾略特羅傑(Elliot Rodger) 是電影《飢餓遊戲》副導演彼得羅傑(Peter Rodger)之子，因長期遭受霸凌而起報復念頭，在行兇前甚至還向電視台投書他的「殺人宣言」，最後他飲彈自盡。本片以兇手自身拍攝的影片，讓觀眾看到他是如何陷入殺人的瘋狂衝動。並結合了羅傑的證詞與來自鑑識心理學家和行為專家的專業分析，同時包含了受害者家人的訪談。
Based on Elliot Rodger, the privileged son of a Hollywood director, went on a brutal stabbing and shooting spree in Santa Barbara, California,before turning the gun on himself. "Campus Killer: Santa Barbara" tells the story in the killer's own words, using Rodger's online trail as a firsthand account of his descent into homicidal madness. Combining Rodger's testimony with analysis from forensic psychologists and other behavioral experts as well as interviews with victims' family members.
