Old friends Yoon-soo, Jong-gyoo, and Jin-gyoo reunite after a long time and share drinks while catching up on each other's lives. Yoon-soo, who is married to Ji-soo, confides that he's been struggling with issues in his sex life with his wife. Jin-gyoo reveals that he broke up with his girlfriend, Mi-kyeong, because their sexual desires didn't align, and he now satisfies his needs at karaoke bars, massage parlors, and similar venues. As the three friends get tipsy, they decide to have a wild night at a room salon. Thanks to the tips he picks up there, Yoon-soo is able to improve his marital sex life. Encouraged by this, his friends begin visiting room salons more frequently.
