Three couples in different stages of marriage and a homebody get together for dinner. The hostess proposes to share the contents of every phone call, text message and email that night. As a result, many secrets are no longer secrets, and the relationship between them begins to fluctuate. Countless wounds are revealed in this "confession game", and the complicated emotions between men and women put everyone in a dilemma. What is the most untouchable bottom line in marriage? Is everyone's experience an unspeakable taboo or a hidden sincerity? After the lunar eclipse, can the lies continue?