Grace Smith's father, Lucas Brown, brings his illegitimate daughter Sophia Brown into the Smith family using a fake paternity test and falsely claims that Grace is not their biological daughter. Grace's birth mother, Helen Smith, never doubts this deception and even tortures and mistreats Grace for Sophia's sake. Sophia schemes to have Grace sleep with a homeless man, but unexpectedly, Grace encounters Eric Moore, a powerful figure in the city. When Grace has nowhere to turn, she seeks Eric's help after discovering she is pregnant with his child. They have a flash marriage, and from then on, Grace enjoys a life of being doted on by her wealthy in-laws while getting revenge on those who wronged her.
