'Longlegs' følger den unge og talentfuld FBI-agent Lee Harker, der bliver sat på den uløste sag om en seriemorder på fri fod. Efterhånden som sagen foldes ud, kommer agenten bl.a. også på sporet af det okkulte, mens hun finder en personlig forbindelse med den nådesløse seriemorder, der skal stoppes, før han kaster sig morderisk over en ny og uskyldig familie.
Peggy Newman, a woman with a checkered past, makes the life-changing decision to become a private investigator following the death of her beloved mother, who she lived with in the small desert town of Yucca Valley, California.
Dogged investigator Allegra Dill returns to her border-town Texas home after her sister is murdered. What begins as a search for a killer turns into an all-consuming fight to bring her corrupt hometown to its knees.
