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As the narrative progresses, flashbacks reveal more about Liz's troubled past. She resides with her sister, Jackie, and her brother-in-law, Dan. The sibling dynamics are strained, marked by arguments and resentment. Liz’s guilt intensifies after a tragic incident involving the family dog, further fueling her feelings of worthlessness. After stealing from her sister and inadvertently causing the dog’s death, Liz's psychological state becomes increasingly fragile, ultimately leading to her desperate attempt to end her life.
This backstory serves as a crucial foundation for understanding Liz’s susceptibility to Aiden's manipulative behavior. After her botched attempt, she finds herself ensnared in Aiden’s delusion, forced to navigate the absurdities of her captivity.