Chisato Shoda, a lonely married woman, spends her time alone at a bar. She gets picked up by a black man who happens to appear at the bar, unexpectedly enjoying a one-night stand. Afterwards, her relationship with her husband deteriorates, leading her to decide on a breakup. When she visits the bar again, she encounters the same black man along with another black man. Unaware, Chisato drinks alcohol laced with an aphrodisiac, her consciousness gradually fading. Amid a mysterious atmosphere, she becomes entangled in a cycle of new encounters and farewells.