Chen Yuzhen and Lin Yulan are twin sisters. When they were young, their parents divorced and took one child away from each other. Their sister Chen Yuzhen went abroad with her mother, and her sister Lin Yulan lived in China with her father. When they grew up, Lin Yulan married Wang Changgui and became a housewife who worked around the small family all day long. However, Wang Changgui ignored Lin Yulan's efforts and either beat or scolded her. Even Lin's father turned a blind eye to his daughter Lin Yulan's plight. After Lin Yulan became pregnant, she discovered that Wang Changgui was cheating and filed for divorce. Wang Changgui did not want to be separated from the family property and pretended to reconcile. He invited her on a trip and pushed her into the sea. Chen Yuzhen returned to China to search for Lin Yulan. Based on her mobile phone signal, she found the location where Lin Yulan threw herself into the sea. She discovered that Lin Yulan had been washed ashore with weak breath and had not yet died. She rescued him and secretly vowed to avenge Lin Yulan