揭開連環殺手的雙面世界，一面與家人朋友正常生活，另一面卻也在外頭進行殺戮。我們將從暢銷作家- 梅莉莎G摩爾、也是笑臉殺手凱斯傑斯帕森的女兒筆下一探究竟。她將探訪受害者的家人並與他們交流。同時，殺手私底下的生活將會與警方偵辦案件的歷程共同呈現在您面前。
延伸閱讀: 犯罪史十大恐怖殺人魔
Monster in My Family, we'll tell the stories of the dual lives of some of the most notorious serial killers, from the inside through family and friends who reveal what was happening on the seemingly normal and non-criminal side of the killers, while they were carrying on their reign of terror on the outside. In each hour, we'll follow this journey in present tense as Melissa G. Moore, a bestselling author and the daughter of Keith Jesperson, the `Happy Face Killer' meets with the loved ones and guides them through their journey to reach out to the families of the victims. The personal life story of the killer will be told in parallel, intercut with the crime story we know through police.
