The Grouch (1969)

Nikolakis Maroulis, a cantankerous shoe-factory managing director, has a very bad reputation: he is an irritable and loud old grouch. His patient and tolerant wife, Ourania, seems to know how to handle the old-fashioned man; however, Keti--Nikos' beautiful young niece who has been living with them since childhood--is unable to tolerate her uncle's bad temper, especially now that she is dating not one, but two ambitious suitors. However, as Nikos uncovers Keti's big secret, before long, there will be trouble. Can Nikos' handsome partner, Kostas, save the day?