"All About Love" depicts the lives of two early 40s women Macy (Sandra Ng) & (Vivian Chow) Anita, who were once lovers. The women cross paths again when they both of them attend a counseling service for pregnant mothers.

Macy is a lawyer who is pregnant with the child of a married man (Eddie Cheung), who also is her client. Anita is a bank clerk who is carrying the child of a teenager named Mike (William Chan), whom she had one night stand with from chatting via internet. Both of the women are carrying babies from one night flings. Will the two women reunite?