Three years ago, a marriage born of mistaken identities bound Shen Jiarui and Gu Wenyan together. On the very day Shen Jiarui was diagnosed with liver cancer, she caught Gu Wenyan cheating for the ninety-ninth time and resolutely demanded a divorce. During the divorce cooling-off period, Shen Jiarui arranged to complete five things with him, only to endure repeated humiliation at the hands of Gu Wenyan and his first love, Fang Jinxia. Under the identity of Rina, a world-renowned painter, Shen Jiarui travels to Paris, where an art exhibition and a red string set her final game in motion. She exposes the truth behind an old car accident case and Fang Jinxia's scheme to secretly withhold her medication, shattering Fang Jinxia's carefully crafted public image. As the truth takes unexpected turns, Gu Wenyan gradually comes to regret his actions. Through Shen Jiarui's calculated counterattacks, Gu Wenyan turns against his own family, relinquishes the Shen family's assets, and is eventually arrested by the police.