Nice old artist, Johnny, goes on painting expeditions to the countryside with his long-suffering wife, Katie.
All will go smoothly, with sedate conversation about the views they are painting, until something reminds the nice painter of the colour black. He becomes a changed man, squeaking 'Black! Black! You lock me in the cellar and feed me pins!' until he can be stopped.
It's enough to make you want to hide in the wardrobe of darkness.