Slender Man (2018) is a horror film that centers around the urban legend of Slender Man, a tall, faceless figure said to stalk and abduct children. The story follows a group of four high school girls—Wren (Joey King), Hallie (Julia Goldani Telles), Chloe (Annalise Basso), and Katie (Alyssa Jaeger)—who, in an attempt to prove that Slender Man is just a myth, decide to summon him by participating in a ritual.

After performing the ritual, the girls start experiencing disturbing visions and strange occurrences.

As fear and paranoia set in, they become increasingly obsessed with the Slender Man legend. When one of the friends, Katie, goes missing after the ritual, the remaining girls are plunged into a nightmare as they try to uncover the truth behind her disappearance and confront the malevolent force they unleashed.

As the film progresses, the psychological tension rises, and the girls’ friendship begins to unravel under the pressure of their terrifying experiences. Wren, in particular, struggles with her sanity as Slender Man seems to be stalking her, leading to horrific consequences.

The film culminates in a chilling confrontation with Slender Man, leaving the girls—and the audience—questioning the boundaries of reality and fear. Slender Man explores themes of friendship, the influence of urban legends, and the consequences of playing with forces beyond comprehension.