When a catatonic woman shows up at the psychiatric unit, social worker Thea swears she knows her from somewhere. She’s shocked to discover the patient holds a link to a traumatic time in her past. Upon regaining lucidity, the patient claims she can’t remember the horrific recent events that caused her brain to shut down. Thea’s at a loss --- especially when the patient is ripped away from her as suddenly as she appeared. Determined to find her, Thea follows a trail of clues to a remote center in Southwestern New Mexico, where a charismatic couple holds a controversial monthly retreat. Forced to participate in increasingly intimate exercises, Thea finds herself inching closer not only to her missing patient, but also to tantalizing answers about her harrowing past. However, time is running out and if she stays for the last session, she too might lose her mind...or worse.

Alex has all but given up on her dreams of becoming a published author when she receives a once-in-a-lifetime opportunity: attend an exclusive, month-long writing retreat at the estate of feminist horror writer Roza Vallo. Even the knowledge that Wren, her former best friend and current rival, is attending doesn’t dampen her excitement. But when the attendees arrive, Roza drops a bombshell --- they all must complete an entire novel from scratch during the next month, and the author of the best one will receive a life-changing seven-figure publishing deal. Determined to win this seemingly impossible contest, Alex buckles down and tries to ignore the strange happenings at the estate. But when one of the writers vanishes during a snowstorm, Alex realizes that something very sinister is afoot.