While on a shopping trip, Grump smells Saimi, a woman who smells just right and throws the whole man into 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.
Unfortunately the movie The Grump's Love Story is not yet available on HBO Max.
| Directing | Mika Kaurismäki | Director |
| Writing | Sami Keski-Vähälä | Writer |
| Production | Jukka Helle | Producer |
| Production | Markus Selin | Producer |
| Production | Hanna Virolainen | Producer |
| Camera | Jari Mutikainen | Director of Photography |
| Editing | Nina Ijäs | Editor |
| Sound | Tetsuroh Konishi | Music |
| Costume & Make-Up | Anna Vilppunen | Costume Designer |
| Costume & Make-Up | Marjut Samulin | Makeup Designer |
| Art | Tuomas Kyrö | Production Design |
| Sound | Pekka Karjalainen | Sound Designer |
| Writing | Tuomas Kyrö | Novel |
