Sung-joo和Jo-hee搬进了Jong-gyu和Min-joo旁边的一所新房子。 Joo-hee给出了一个解决办法，告诉他们他们已经搬进了隔壁。 Jong-gyu立刻爱上了Joo-hee，并且想着和她做爱。 与此同时，Sung-joo去隔壁借用一把工具，然后坠入Min-joo。 丈夫被对方的妻子所吸引，很快他们就越过了线路。

《妻子的情人2》讲的是Sung-joo and Joo-hee moved into a new house next to Jong-gyu and Min-joo. Joo-hee gives out ddeok to tell them they"ve moved in next door. Jong-gyu falls in love with Joo-hee at once and thinks about having sex with her. Meanwhile, Sung-joo goes next door to borrow a tool and he falls for Min-joo. The husbands are attracted to each others" wives and soon they cross the line.