"The plot is simple. A writer with a deadline finds he cannot concentrate in the bustle of the big city, so he takes his wife and baby to a seaside resort, hoping for peace and quiet. However, the baby cries, distracting him, so he quarrels with his young wife. Then mice in the rafters scurry and squeak. The last straw is a wild jazz party next door. He storms over to complain -- and finds a comely young lady doing the Charleston. She soothes him and he happily stays at the party, much to the consternation and jealousy of his wife. (The jazz band plays American tunes of the period.) Comes the dawn and he finishes his manuscript, then takes his wife and baby for a walk on the beautiful seaside boardwalk. They reconcile by singing "My Blue Heaven" -- I think in Japanese.)After 35 years I'm not entirely sure.) A moment of total sweetness and delight."
http://www.imdb.com/title/tt0022105/