A heavy rain forces married woman Aya and salaryman Tatsuya to share a vacation rental due to a double booking error. As they talk, Aya reveals the loneliness of having a husband working abroad. When Aya catches Tatsuya masturbating to the thought of her late at night, their restraint vanishes. "Were you thinking of me?" A night that was supposed to be a one-time mistake turns into a passionate connection where both their bodies and hearts intertwine.