At 26, Marigold Williams leads a lonely life. Shy and introverted, she struggles to assert herself, despite being the smartest person in the room. As a data analyst, Marigold finds solace in the structured world of numbers, offering an escape from the chaos of human interactions. While her reliance on routine provides security, it also traps her in a repetitive existence that feels increasingly stifling.

To cope, Marigold engages in OCD rituals, such as meticulously organizing her workspace, locking her apartment door repeatedly, and obsessively checking off lists. These compulsions create a fragile structure in her life, reflecting her struggle to maintain control in a world that feels overwhelming. Her challenges are intensified by her coworker Melanie Pierce, whose snarky comments only deepen Marigold's insecurities.

Marigold’s relationship with her emotionally distant mother, Nora, is equally strained. However, everything changes when Marigold meets Avery. Initially drawn to Avery’s enigmatic allure, Marigold soon finds herself enthralled by the danger inherent in Avery’s means of survival. As Marigold sets out to help Avery, she begins to uncover her own inner darkness and gain the confidence she has longed for. Caught between the safety of her old life and the thrill of a new existence, Marigold now stands at the crossroads of self-discovery and self-destruction.