Grace is a New York City banker taking her annual solo vacation to unplug and regain a sense of freedom. She seeks solitude at a remote Wyoming ranch but quickly grows uneasy due to the lack of cell service and strange occurrences around the property. Despite her reservations, she feels a strong physical attraction to her host.

Calvin is a handsome, hardworking farmer who operates a ranch along the Wind River. He rents out a room on Airbnb, claiming the company helps alleviate his isolation. He is immediately captivated by Grace and tries to impress her by teaching her ranch activities like horseback riding and fishing.

Charlotte is a Dubois local who works at the grocery store and collects eggs from Calvin's ranch to sell. She is openly infatuated with Calvin and views Grace as an unwelcome outsider. She uses any excuse to drop by the ranch and assert her established connection with the host.

Joe is Calvin's younger brother and a local mechanic. He lives in Calvin's shadow and struggles with a troubled past, including time spent in prison for a fatal drunk driving accident. He has a volatile relationship with his brother and often arrives at the ranch unannounced, complicating the developing romance between his brother and Grace.

Betty is the proprietor of a local boutique and acts as a surrogate mother to Calvin and Joe. She is highly protective of the brothers and takes an invasive interest in Grace's presence at the ranch. She also tends to the honeybee hives on Calvin's property.

Almond is the newly appointed county sheriff in Dubois. He visits the ranch to investigate the disappearance of a woman whose car was found nearby, bringing the reality of local crime to the isolated property.

Wyatt is a local sheriff's deputy and a lifelong friend of the Wells brothers. He works under Sheriff Almond and deals with the social complications of interacting with his ex-wife in a small town.

Albert is an older, disheveled man introduced as another Airbnb guest staying in the room next to Grace's. He has a drinking habit and wears a medical bracelet indicating multiple severe allergies. His erratic behavior adds to Grace's growing unease at the ranch.

Dr. Reed is the community physician in Dubois. He treats local injuries and checks Grace for a concussion after a riding accident on the ranch, highlighting the small-town nature of local healthcare.

Patty works as the receptionist at Dr. Reed's medical office. She participates in local community events, including dropping by the ranch for celebrations.

Briana is a young woman who booked a stay at Calvin's Airbnb the week before Grace arrived. She is currently missing, and her abandoned car sparks a police investigation near the property.

Lisa is Calvin's former girlfriend who died in a tragic car accident a year prior. Her lingering belongings in the guest room create early tension for Grace and cast a shadow of grief over the ranch.