| Director | Taylor Sheridan |
|---|---|
| Genre | horror film |
| Runtime | 88 min |
| Country | United States |
A man wakes with a machine extracting fluids from his head as his chest is torn open and salt is poured in the wound. After he dies the mysterious fluid is then converted into pills by his captor.
Couples Tony and Kai, Nick and the pregnant Tayler are on a camping trip. The group stop to help a woman, who knocks them out with a gas.
They awake in a house with other captives, where a video explains that they all have devices in their heads that extract fluid as they endure pain. If they don't experience enough to fill a bar within 22 hours, the devices will kill them. A victim named Julian attempts to remove his, but doing so instantly kills him. The rest agree to share the pain to escape.
Tensions rise as they take turns torturing each other with boiling water, drills and pliers. The first to volunteer, Greg, seems to know more than he lets on. Another captive named Tara takes it too far by killing Kai. Tony tortures Tara to death in retaliation, getting the bar to eighty percent. The group fills the bar by breaking their collarbones. Another video plays, explaining that the door will open for one person at a time as a machine removes the devices.
As they escape Nick hears Tony yelling for help outside the door. Upon exiting the room, Nick finds that a captive named Sam has killed anyone who exited, including Tony. He gives chase while Tayler goes back for the mortally wounded Greg, who admits he was aware of the cult before dying. Sam explains that the cult believes that pain is a purifying experience, which everyone should endure.
Greg's death causes the meter to go back down, forcing Tayler to torture herself to refill it. Meanwhile, Nick manages to kill Sam, but not before Sam poisons them through their devices. Nick finds and takes an antidote, but is unable to reach Tayler before she dies.
Shaken, Nick leaves the facility. Later he sees the same woman who abducted them preparing to capture more people. He attacks her in a rage and throws her into his trunk, presumably planning to torture her as revenge.