After serving 13 years in prison for a murder she didn’t commit, a woman is released with a singular focus: revenge. Her incarceration starts when she is falsely accused of kidnapping and killing a young boy. Despite her claims of innocence, she is betrayed by someone she trusts, sealing her fate. While in prison, she earns a reputation for her angelic demeanor and kindness, helping fellow inmates in various ways. However, beneath this saintly exterior, she meticulously crafts a plan to exact vengeance on the true culprit upon her release. She reconnects with former cellmates, who are eager to assist her in her quest for justice, and they become instrumental in setting her elaborate scheme into motion.

Upon reentering society, she adopts the persona of a ruthless and calculating avenger, systematically gathering pieces of information and tools necessary for her plan. She works to reclaim her estranged daughter's affection and trust while balancing her desire for normalcy with her unrelenting pursuit of retribution. Her life intertwines with those of other victims intertwined in the original crime, and she leads them in a collective effort to confront their shared tormentor. As she inches closer to confronting the real murderer, intricate layers of her meticulously constructed plan reveal her determination and moral complexity. Her journey becomes a poignant exploration of pain, guilt, and the quest for redemption.