Madison is led by Seth to Izzy, who tells her that three more people must die, after which a door to the other side will open. She is forced to defend herself against him, leading to his death. When Madison returns to Jake, she discovers that he is possessed and stating that the curse will continue on. Madison is attacked by Izzy and flees to another room, during which time she is also attacked by other supernatural forces. She tells Jake that she is pregnant, which is why she wanted to return to the home. Madison also recalls nightmares of the past and the words that "five must die". While they are trying to find a way to get help or escape, Jake discovers a photo album containing pictures of Seth, a brother that Madison realizes she couldn't remember. She tries to kill Madison but is stopped by Jake, who ties Izzy up as she rants.
![in darkness 2017 in darkness 2017](https://m.media-amazon.com/images/M/MV5BMWYxODdkOTUtNDNhOC00NTA4LThhNWUtZmQ4ZmZlNWI1ZjcwXkEyXkFqcGdeQXVyNjUxMjc1OTM@._V1_SX638_CR0,0,638,319_AL_.jpg)
Izzy briefly disappears and returns possessed. When Madison reveals that there have been similar homes that have disappeared after tragic events, the group tries to leave the home but are unsuccessful. Once inside the house the trio experience strange supernatural events. Jake is concerned for Madison, as she has recently begun strange behaviors, one of which is writing the number five as slashes. Years later Madison is returning to her childhood home alongside her boyfriend Jake and her cousin Izzy. Only the intervention of Madison's father saved the girl, however he reported hearing a voice whispering the number five.
![in darkness 2017 in darkness 2017](https://media.senscritique.com/media/000017442183/source_big/Dark.jpg)
Twenty-five years ago Madison's mother smothered her infant daughter Olivia. The film opens with a man playing with his daughter Sarah as a house appears in the distance.