Is Tammy losing her mind or is she uncovering a dark conspiracy?
Doomsday prepper Tamara Umbra just bought a membership into a luxury fallout shelter called The End Timers. During a weekend visit to the shelter an incident occurs trapping her and her fellow members inside. Not able to take her medication, she starts hearing a voice in her head. At first she makes an effort to fit in with the others and ignore the voice. But, the voice continues. It tells her that there is a conspiracy at work against her and everyone at the shelter is a part of it. It tells her to kill. Tammy struggles to decide if the evidence the voice is showing her real or imagined. Is Tammy the victim of a conspiracy or is she just becoming a deranged mass murderer?