Build a movie plot around this: Who stabs Beth? Sam
A whitewater rafting trip is underway, with 3 long-time friends on board. Leading the trip is the bold adventurer, Juno (Natalie Mendoza). Also there is wife and mother Sarah (Shauna Macdonald) and her closest friend, Beth (Alex Reid), both British. Awaiting at the end of the raft adventure is Sarah's husband, Paul (Oliver Milburn) and daughter, Jessica (Molly Kayll). Paul and Juno share a strange moment before he drives to go back home with Sarah and Jessica. While Sarah and Paul are seemingly on the cusp of an argument, a small truck plows head-on to their car, sending a metal rod right through Paul's skull.Sarah has the first in a series of dreams where Jessica appears in a party dress and seems to offer Sarah a birthday cake. Awakening from her injuries in the accident in the hospital, Sarah panics and runs down the hallway, imagining the hospital getting dark around her. Beth embraces her and they both weep. Juno, standing in the distance and also crying, turns and leaves them.A year later, Juno has organized a spelunking (caving-diving) trip in the Appalachian Mountains. The three women from the raft trip gather at a cabin the day before this adventure. An additional 3 adventurers join them, including Juno's butch friend Holly (Nora-Jane Noone), who even Juno considers too reckless. The other two are a pair of European-rooted sisters, the safety-cautious, older sister, Rebecca (Saskia Mulder) and medical student Sam (MyAnna Buring), who, though competent, is the least experienced adventurer of the group.Tension remains between Juno and Beth and Sarah over Juno's abandonment of them last year. Holly laments the the cave they are to explore is just a tourist trap and offers no challenges. That night, Sarah has a nightmare that a steel rod hits her face just as it did Paul's.Waking her five companions the following morning, Juno leads them on a long drive over rough country road. When leaving the cars, Juno seems to intentionally leave behind the cave map. Hiking to the cave entrance, they encounter the...