When Sloane takes a job at the infamous whitewater-rafting camp Widow Falls, she quickly learns that the camp has a reputation for more than just summer fun.

People go missing at Widow Falls. The guide she’s replacing was just one of many. As Sloane settles into her new home — a one-room apartment she’ll be sharing with the five other guides — she can’t help asking questions and digging into the disappearances she’s heard about. Her new roommates tell her stories of dark legends and dangerous folklore surrounding the secluded camp but assure her there’s nothing to worry about. It’s all just superstition.

When Sloane stumbles upon a clue and a secret message hidden beneath the floorboards of their loft, she begins to realize there may be more to the myths than she’s been told. The message gets her attention: Don’t trust anyone at Widow Falls. As she follows clues to better understand the missing guide she replaced, Sloane can’t help noticing the similarities between the two of them. Whatever’s happening at Widow Falls, it’s clear someone doesn’t want her digging into it.

As the seams of her reality are torn apart, making her question everything, Sloane has to uncover the truth about the camp — and its occupants — before someone else goes missing.