A stubbornly traditional eighty-year-old farmer - whose social attitudes verge on the prehistoric - raises hell when he is forced to move in with his sadsack, city-dwelling son and domineering daughter-in-law.

The Grump prepares to die – everything is done and his wife is dead. He’s making his own coffin when the life walks in, all of a sudden. The granddaughter needs the stubbornness and wisdom of her grandpa. In return, The Grump gets a meaning for his life – and a big secret.

Grump's life follows the same familiar routines: spring is here and the early potato harvest is ripening. But Grump crashes his beloved Ford Escort and the car has to be scrapped. A new, modern vehicle is no match for quality and the nearest Escort, a 1972 model, can be found in Germany. When the Grumps's sons refuse to help, he must travel to Germany alone.

While on a shopping trip, Grump smells Saimi, a woman who smells just right and throws the whole man in a state of confusion. The Grump would not have believed that his chest could still feel like a young boy's. The Grump has to admit that he enjoys Saimi’s company. The words, looks, and touch of another awaken long-forgotten feelings. The Grump’s sons are incredulous and downright jealous of their father, and they don’t want to trust Saimi’s sincerity… could she be after the inheritance? Family meetings, misunderstandings, moonlight swims, and sleepless nights. Indeed, Cupid's arrow can pierce even an old man's flannel shirt.