The Natsukawa couple and the Kanda couple, who live in the same apartment building, have a habit of going camping once a month. It is also customary for Ayumi, the wife, and Kanda's wife to complain about her husband to each other while they are there. The next day, the Kanda couple get into an argument over something trivial. Kanda runs out of the tent and says he's going home, so Ayumi can't bear to see them, so she suggests that they swap spouses to cool their heads. However, this spouse swap leads to an unexpected mistake...