Madam Butterfly finds herself being poisoned and her days are numbered.

Even Chi can do nothing to help her. Dan wants to take her as his

wife as soon as possible and this touches her very much.

All along Dan believes that the murders of the big families have nothing

to do with Madam Butterfly and he wants to carry out . investigations

to prove her innocence.

Upon examination, Chi discovers a pin in the head of the corpses and they

think that those families are murdered by Lo Tso. However, Chun insists

that they are killed by Madam Butterfly.

The mysterious man has once suggested to Yuen that he can use some tricks

to gain much progress in his martial arts. Yet that may bring harm to

his masters. Therefore, Yuen refuses to do that even though she is

eager to become skilled in his arts.