Therapists are dirty, filthy liars, and as soon as Astrid escapes this mountain, she's going to say that right to Margery's stupid kind face. If she escapes the mountain.  Sometimes life is hard. Most of the time, you can handle it. On the off-chance that you just can't anymore, even the strongest people will do the most drastic things. Astrid is one of those people. Terribly depressed and not very impressed with life, she was convinced she'd seen everything. Until Mt. Rainer.  On what should have been a routine 'become one with nature' wilderness trip Astrid St. James hadn't actually wanted to take, things go awry. Not in the B-Movie typical 'dangerous killer out to slaughter us' or even 'there's a werewolf in the woods!' sort of awry. Those might have been preferred. Instead, Astrid is trapped in a cave she only vaguely remembers falling into, surrounded by eleven strangers she's beginning to suspect might not be entirely human, running from the dark and whatever lurks inside it. Ultimately, she's still not sure if it's a good thing she's already going to therapy.