Puustinen wakes up in a small, cramped box. The only thing in Puustinen's wallet is Matti. Matti is a small cat. Puustinen struggles with Puustinen's day-to-day existence: skeletons are peeking from around every corner. Puustinen works at a factory, placing kittens in a box. After a long and hard day Puustinen gets a few coins. Puustinen spends it immediately: on pick-and-mix cat candy, ordering rescue cats online, picking up boxfuls of cats from the post office. In Puustinen's wallet, Matti grows into a gigantic cat that Puustinen desperately tries to appease.