Three married guys sneak out every night to cheat on their wives. They come up with ingenious ways of not getting caught so they think that their wives know nothing about their night-time activities. However, they do and the wives have teamed up to wreak some revenge.

Based on a true historic figure, Yamada Nagamasa, a Japanese adventurer who went to Ayothaya in the 16th century and became a soldier in King Naresuan's army. After the war in Burma it's restless in Ayothaya, because of a mysterious group of men that terrorizes and plunders the city. Yamada goes after them and discovers that the men are rebelious Japanese samurai. Now he has to fight his own countrymen.