The Blackcoat\u2019s Daughter<\/em>) is clearly more interested in hearing audiences\u2019 nervous laughs than just their screams. <\/p>\nOn its face, the movie is a fairly straightforward serial-killer hunt with a few supernatural twists. Horror veteran Maika Monroe (It Follows<\/em>) plays Lee Harker, a young FBI agent who seems unusually talented and intuitive. As a result, she gets assigned to investigate one of the FBI\u2019s longest-standing mysteries: a series of brutal killings in which a father murdered his family in their own home, then killed himself as well. The only things linking these killings is that a daughter in the family has a birthday on the 14th of the month and that at each of the crime scenes is an encoded, seemingly Satanist note from someone who calls himself Longlegs. But there\u2019s no evidence that anyone outside the family was ever at any of the homes when the crimes occurred.<\/p>\n