Chu Lai-Ngor (Carol 'Dodo' Cheng) and her daughter Vivian (Vivian Chow) have now moved in with Alex Lui (George Lam). They're not married yet but she's calling herself Mrs. Lui now. Just when the ultimate housewife and ultimate nag Ngor thought she got rid of her competitor for Alex in the first movie, she now has more competition, in the form of choreographer director Joe (Maggie Cheung). Alex's cousin from Canada Ao (Hui Siu Hung) also present him with a bunch of problems and thoughts in his head with his kids and his perverted attitude. What will Ngor, Alex and Joe do?

The first of the three titles in the screwball Hong Kong "Hearts" series. Alex, a creative director, temporarily fills in as conductor for a choir. Two playful kids give him a big headache. One of them is Wei Man. Her mother is a neurotic single parent. She believes that Alex has an illicit desire towards Man and nearly takes him to task for it. She eventually discovers that Alex is a gentleman and mutual attraction blossoms into a love affair. Soon after, Alex's ex-girlfriend comes back to him, wanting to patch up their relationship. He is torn and must decide between the two.

George Lam and Carol Cheng play a couple who finally settle down after a long-running love marathon. Their troubles begin when George loses his job and becomes a house-husband, while Carol and daughter (Vivian Chow) become the breadwinners of the family.