"There is no fear in love. But perfect love drives out fear." Throughout the ages, it is common for men and women to make love. But for the newly-married social worker Eddie Cheung and sex therapist Sharon Chan, it is difficult. Although they have the professional knowledge to help others, they live under the same roof with multiple generations of their family. Their sex life has suffered, but it is hard to talk about. It turns out that other couples, including the germophobe geek Elena Kong and crude, middle-aged Louis Yuen, the May-December pair of Benz Hui and May Chan, and even teacher Sammy Sum and sex addict Grace Wong, each have different strange secrets in the bedroom. How can these macho men and virtuous ladies break the taboo and start a ground-shaking revolution for love?