Dimwit, the dopey dog, is a harried office worker, and chain-smoking, gulping coffee, and taking bottles of aspirin tablets do nothing to settle his jangling nerves. His doctor advises him to take up a relaxing, mild hobby. Dimwit tries woodworking, landscape painting, and photography, but all result in disasters that unnerve him even more. He shoots the doctor and finally finds a life that relaxes him, busting rocks in the fresh air of the prison yard.