After 15 years of living as a humble orphanage worker, Mary Miller's peaceful life is shattered when a brain hemorrhage leaves her comatose. While her youngest adopted daughter Grace desperately tries to save her life by selling her own blood, her other children Rose and William reveal their true cruel nature. When Mary finally wakes and claims to be Phoenix Group's legendary CEO, she faces brutal mockery and violence. But those who dare abuse the "delusional old woman" are about to learn they've made a terrible mistake—as Mary's vast empire prepares to strike back against all who wronged her family, while rewarding the one daughter who loved her without knowing her true identity.