Two couples move into the same building on the same day. When they discover their spouses are having an affair, the two neighbors become friends and try to replicate the infidelity of their partners. However, they end up falling in love for real and decide to break up and go their separate ways. In the end, both couples have split up and are alone.
In 1960s Hong Kong, an intense bond develops between two neighbors, Mr. Chow and Mrs. Chan, who suspect their spouses of having an affair.
Two people have a chance encounter in a convenience store.