The Dog Lover (1962)

Jack runs a local supermarket with meticulous care. His customers' harmless yet chaotic behavior often leaves him frazzled, and he soothes his throbbing head by pressing a frozen juice can to his forehead. Yet at home, he's unfailingly gentle, devoted, and patient with his wife and daughter. Then one day his child arrives with a stray dog in tow—and everything in his carefully ordered world is thrown into disarray.