A salaryman's affair blows up in the worst possible way: his wife finds out because he confessed it in his sleep. What happens next is the show understanding that humiliation at work, in front of your mistress, because your massive wife dragged you both into it, is funnier and sadder than any morality lesson. This movie knows the real weight isn't her body, it's what happens when a man's cowardice crashes into his wife's rage in fluorescent office lighting.

A salaryman with four children is endlessly henpecked at home and unhappy in his marriage. His wife is a huge woman, 180 centimetres tall and 120 kilograms. Seeking relief, he begins an affair with an attractive typist at his company, then gives himself away by talking about it in his sleep. Once she gathers more proof, his wife heads to his office to confront him and the typist together.