In 2014, ten friends; Sam, Josh, his twin sisters Hannah and Beth, Mike, Jessica, Emily, Matt, Ashley, and Chris have gathered together at the Washington Lodge on Blackwood Mountain for their annual winter getaway.
During their celebrations, half of them decide to play a prank on Hannah, who's romantically interested in Mike. While Josh and Chris are passed out drunk in the kitchen, Mike invites Hannah up to his room. Unbeknownst to her, Jess, Emily, Matt and Ashley are hiding under the bed and in the closet. As Mike convinces her as she starts taking off her clothes, Jess accidentally reveals everyone and in doing so, humiliates Hannah just as Sam bursts in to warn Hannah, finding out that it was too late.Hannah runs out of the cabin and into the snowy woods as everyone runs after her, trying to apologize and convince her to come back. Beth suddenly appears after hearing the commotion and asks them what happened. After learning that Hannah has been humiliated, she angrily tells them off and chases after Hannah. As Beth finds her way into the middle of the woods, she locates Hannah crying in the middle of a small clearing and comforts her. Suddenly, they hear a violent noise and run from an unseen pursuer.As they're cornered at the edge of a cliff, Hannah slips and falls while holding Beth's hand, taking her down with her. Beth manages to hang onto a large branch at the edge of the cliff, with Hannah on her other arm. The next moment, a strange man crouches by the edge of the cliff and extends his hand, but Hannah and Beth both fall to their apparent deaths, never to be seen again.On the one year anniversary of the disappearances of Hannah and Beth Washington, the remaining seven friends accept Josh's invitation back to mountain and make their way there. As the group separates to partake in their own festivities, their seemingly idyllic getaway begins to quickly turn sinister in more ways than one. Mike and Jessica head to a guest cabin for some alone time and Jessica is kidnapped by an unknown creature. Mike chases after her in an attempt to save her. Depending on his choices during the chase, he either finds her dead or unconscious but she disappears as the elevator she's laying on falls down the shaft. Mike then follows a mystery man whom he believes killed Jess to an abandoned Sanatorium, in which he explores and discovers information about a mining accident in 1952, which resulted in miners being trapped following a cave-in. Experiments and studies were done on at least one survivor by doctors at the Sanatorium, and a reporter ran into trouble trying to find out more on the cover-up.Ashley, Chris and Josh use a Ouija board to communicate with spirits and purportedly receive communication from either of the Washington twins. Josh, convinced that either Ashley or Chris are messing with him, storms off. Chris and Ashley investigate the clue that the spirit communicated, but Ashley and Chris are knocked unconscious by a mask-wearing psychopath and Ashley is kidnapped. Chris tracks her down and finds Ashley and Josh on the deadly end of a Jigsaw-like trap and must choose between saving one of them.After learning of a maniac on the loose, Matt and Emily locate a radio tower and call the mountain rangers for help, who inform them that assistance won't arrive until dawn at the earliest. An unknown creature tries and fails to enter the tower and then causes the tower to collapse by cutting one of its cables, sending it toppling into the mines. In the chaos that follows, Emily and Matt are separated in the mines, and either or both of them could die trying to make their way out.Meanwhile, Sam is stalked by the psychopath and chased throughout the lodge. In continuous interludes, a psychiatrist, Dr. Alan Hill, conducts an interview with an unseen figure, asking questions as the narrative progresses. In each interlude, Dr. Hill's office grows more grotesque and dilapidated, reflecting the choices the player makes during each interview interlude. Depending on the former choices of the player, Dr. Hill himself may change in appearance, becoming sickly and maimed. Eventually, he is revealed to simply be a hallucination in the psychopath's mind.As more sinister events unfold, the psychopath reveals himself to be Josh, who was playing a prank on the group the whole time in retaliation for the prank that indirectly got Hannah and Beth killed the previous year; Mike and Chris capture him and leave him tied up in a shed while some characters that are outside of the lodge experience supernatural elements. In the abandoned mines, Emily may find Beth's head and learn that Hannah had actually survived the fall off the cliff and had buried Beth, only to dig her up weeks later and feed off her corpse as a result of extreme hunger.As the friends uncover clues about the past, a local resident who had been stalking the group, subtitled as The Stranger and referred to by the characters as "Flamethrower Guy", reveals himself to the