The rich bride-to-be Yim Pui-wu is sentenced to death for the murder of her adoptive mother, Mrs. Yim Hung Nim-tsz shortly before her wedding. Sitting in the courtroom, Kong Lai-nga bursts into tears after hearing the judgment. Wu enjoys privilege in the prison which ends up provoking strong resentment of the other inmates against her. Hoi visits Wu in the prison. He is not going to give Wu up as he strongly believes Wu is innocent. Hoi and his mother visit his ill father in Singapore. Nga follows them and soon she finds that Tsz is not going to appeal Wu’s case. Nga meets with Ying Leung. Leung offers her financial help to hire a lawyer for Wu’s case. Wu flashes back the date of her wedding, it was cancelled because her mother-in-law-to-be broke her leg in an accident. Nga was the nurse who sent Tsz to the hospital. In the hospital, Wu asked Nga to stay away from Tsz and returned the wedding present to Nga.… ...

It turns out that Wu and Nga are biological sisters. Wu thinks the background of Nga may bring her troubles as Nga has once been a dancing girl. Wu is locked up in a dark cell after she hits Wei. Nga starts working as a cleaning worker in the prison with a wish to see Wu more. Leung visits Nga and brings her son a present. In fact, the boy is the illegitimate child of Leung and Nga. Leung thinks Nga should not work in a prison, yet Nga believes it is worth doing as Wu is her biological sister. Wu enjoys no more privilege since Hoi has renounced the engagement. She is injured by Hon Wan, a violent inmate in the prison. Nga is hurt by a police dog when she is trying to save Wu. The sisters are sent to the hospital together. In the hospital, Nga gives Wu her words of support and sincerely tells her that she is not going to leave her alone. The sisters become friendly again.… ...

Wu keels over as she marches around the playground. Sophie sends her to the hospital. Sophie tells Wu that she can lend her books so that she can help herself to reverse her judgment. Sophie encounters Ma Hak, a man she has known when she was studying in England. At that time, Hak was chasing Sophie. Yet, Sophie tells him she will never love him. Sophie continues to tell him she was raised in an orphanage, and she returns to Shanghai again because she wants to find her two long-lost sisters. Wu begs Nga to buy Kar Wai-sze off, the witness of her case. Yet, Nga hesitates to reply. Hak starts to work as a prison doctor. Sophie once again tells Hak not to waste his time as she is not going to love him. In the hospital, Nga begs Sze to amend the statement she made. Before she is to agree with it, Sze needs Nga to lend her money. Their conversation is noticed by Sophie. Nga meets Sze in the church and gives her money.… ...

Nga’s mother asks the help from Leung when she has learnt about the arrest of Nga. So, Leung finds the head of the police department for assistance. In fact, Leung’s mother has approached the police chief for the release of Nga and Sze. Leung’s mother claims that she did it because she does not want to see her grandson losing his mother. Leung talks to Nga and blames her for doing things in such an insensible way. Wu and Nga exchange messages by hiding notepaper in the church ground. However, this is noticed by Sophie, and soon she realizes that Wu and Nga are her long-lost sisters indeed. Nga and Fei visit Sze again and attempt to convince her for assistance in Wu’s appeal. Regrettably, Sze is knocked down by a car when she is fleeing from the sisters. Before dying, Sze affirms that she saw Wu pushing her adoptive mother off a building. Nga and Sophie attempts collect evidence in Wu’s bedroom.… ...

Wu often has nightmares in prison. Bad things always happen to Wu, she is often bullied by Wan. Luckily, she receives the support from Madam Wong, who is also a death row inmate. Madam Wong tells Wu that she is a scapegoat actually, she is here for money. Wu has a sudden thought that it may work if she can find a scapegoat. She needs Nga’s help, and Nga hesitates to give her reply. Madam Wong breaks down before her execution. Wu feels depressed. Wu cuts her wrist and wants to kill herself. Soon, Nga promises to find Wu a scapegoat without telling Sophie, but Sophie notices it. Upon knowing that Nga is Sophie’s sister, Hak helps Sophie in the appeal of Nga’s case. Hak is going request the use of a lie detector in the court, but Wu refuses. Wu finally breaks down and admits that she murdered her adoptive mother.… ...