IML-009 Husbands conspire together, claiming to 'eliminate marital monotony' by hosting couples' drinking parties. However, they keep it secret from their wives; the real purpose is... to sleep with each other's wives.

Two couples with a good relationship share a common problem, which is that they have been sexless recently. The answer the husbands came up with after discussing it... was 'swapping wives for sex'!! The plan proceeded in secret from their wives, and even junior colleagues were invited to liven things up and operate the camera, showing meticulous preparation! As soon as the drinking party began, starting with trivial conversations and aided by the power of alcohol, it gradually headed in a sexy direction...