Remote drinking party takes an unexpected turn into a secret rendezvous! The year-end party planned by married women and director Takeshi Karagi takes a far more intense turn than anticipated. Set against the backdrop of their interactions over the past year, this is "Side.B," filmed by director Karagi himself. Influenced by husbands' wishes, hidden desires among the men, and the complex emotions of the married women, the virtual drinking session gradually evolves into intimate, close-contact encounters. Conversations across screens slowly give way to passionate physical contact. As conflicting intentions collide, unforeseen developments unfold one after another. What kind of ending awaits this fateful gathering?