When Lauren arrives at her childhood friend Kate's isolated home in Oakside Park to help with a move, she discovers the house abandoned and Kate's bedroom plastered with frantic sketches and warnings about a mysterious tall figure. Disturbed by scattered belongings and distant screams emanating from the surrounding forest, Lauren ventures into the darkened woods with only a flashlight, determined to uncover what happened to her missing friend. As she explores the shadowy wilderness and desolate locations, collecting fragments of evidence about Kate's disappearance, Lauren realizes she is being stalked by a supernatural presence—the Slender Man, an otherworldly entity that materializes and dissolves unpredictably from the darkness. Survival becomes as crucial as investigation, as every answer she seeks draws her deeper into the creature's domain and closer to a confrontation she may not survive.