CHU SHAU YUK receives a shocking message that her husband, YEUNG CHOR KAU is unfaithful to her and has a mistress in Mainland China. Therefore, YUK takes a ride to Sheung Ping and finds proof. Coincidentally, she meets her sister, CHU SHAU PING and her son, YEUNG CHI KWONG on her way. Hearing the tragic incident of YUK, they both agree to help her to find KAU and the mistress. After KWONG farewells with his lover, who is also lived in Mainland China; they set off for their investigation. At last, they reach the house of KAU and find a lady named HUNG. Certainly, YUK gets mad and smashes the man comes out from the bedroom. However, she has made a mistake and realizes that the man is not KAU at the end. The mission fails and YUK returns Hong Kong without evidence.

YUK continues to find KAU suspicious. Meanwhile, she receives another message about her husband again. Someone tells YUK that KAU has won a lottery of ten thousand dollars……