Chiaki (Yoshino Midori) had built a happy family life, while Azusa (Fujiwara Kirika) found herself lonely despite gaining freedom during her husband's work-related absence. Meanwhile, Mari (Mizuki Yuko), divorced and enjoying living alone, looked forward to a new chapter in life. Though each woman had a different personality, the three wives had previously enjoyed a close friendship. However, beneath their seemingly harmonious relationship lay hidden affairs—Mari's affair with Michio, Azusa's attempts to fill her loneliness through dating sites, and Chiaki's growing realization that her happiness was an illusion. The Serenade of the Wives reveals the sensual, forbidden truths lurking beneath their beautiful facade.