1. Amelia is part of a support group after losing someone close to her in a car crash. Members of the group begin disappearing, and Amelia notices strange patterns involving numbers.
2. After Hayley and then Scott go missing, Amelia realizes there is a pattern to the numbers and disappearances. She fears she may be next as the number one.
3. The film ends with Amelia coming to the realization that she is number one, suggesting she expects to be the next to disappear.