On the first day that Su Tang married into a wealthy family, her mother-in-law Zhou Fengyi handed her an agreement: give up cooking, or get out of the Gu family. She signed in tears, but used a "Jade Dew Ningxiang" to make the Gu family restaurant chain lose customers and its stock price collapse within three months. Husband Gu Huaizhi finally came to his senses. While chasing his wife to the crematorium, he discovered an old case of his mother stealing Su Tang's father's recipes. And the secret revealed by the housekeeper Lao Zhang points to an old friend who has been imprisoned for twenty years...