With her husband Shawn planning to arrive later, Laura takes her two young daughters, Kayla and Maddie, to a remote lake house for their annual family getaway. When they arrive, area resident Owen mentions that the family who previously lived in the house had a son named John who went missing. Meanwhile, at a gas station, Shawn buys the girls a music box. While playing outside, Kayla and Maddie follow a long red string, which leads to a tea party set up in the middle of the forest, where there are two cupcakes on the table. Maddie eats one, but Kayla saves hers to give to Shawn. In the night, Maddie gets sick and vomits up a small piece of ribbon with the word "hello" written on it. Kayla tells Laura about the cupcakes and, in the cupcake Kayla saved, Laura finds another ribbon inside with the word "goodbye" on it. Laura tries to call 911 but the landline is down. After hearing unsettling noises from upstairs, Laura goes out to her car to search for her cellphone, and finds a strange doll in the backseat. Laura leaves the house with the girls but as she drives away, two wheels fall off the car and crashes. Back in the house, Laura finds a family photo with everyone's faces scratched out, except for hers. They also see a masked man, revealed to be John, standing outside, just as Shawn arrives. He calls Laura's cellphone and hears John breathing heavily on the other end. Shawn then follows a red string into the forest where mannequins are positioned like a family in effigy around the tea party. John appears and kills Shawn with an axe. More strange noises are heard inside the house. John uses a recording of Shawn's voice to lure Laura outside. Shawn's dead body suddenly drops from the roof with his eyes gouged out. When the lights in the house go out, Laura hides the girls in a closet upstairs while she recovers Shawn's car keys from his body. Owen arrives at the house to investigate the commotion, but John kills him. Downstairs, Laura finds the doll in the kitchen, along with a storybook altered with handmade pages depicting John's plan to kill everyone. As they prepare to leave again, John unexpectedly breaks through the front door and captures Laura. He then plays a children's song to lure Kayla and Maddie outside to Shawn's car. They find their mother bound and gagged in the trunk. John swings his axe into Laura's side before chasing the girls back to the house. John finds Kayla and Maddie hiding under a bed. He explains to them that he grew up in the house and has been stalking Laura's family during each of their annual trips. John speaks cryptically about the storybook's significance before flipping the bed and capturing both girls. By morning, John brings the unconscious sisters to his effigy collection in the forest where he plans to rebuild the mannequins from their body parts. Having recovered, Laura distracts John with the music box then attacks him with his axe, and he collapses to the ground. Kayla and Maddie reunite with their mother. She gets the girls in Shawn's car and as she drives away. The engine stalls, but Laura manages to re-start it. As they look back and see, John's body has disappeared.
initially had distribution rights to the film, but dropped the film and was later acquired by Vertical Entertainment. It was released on September 14, 2018.
