Stefek and his older sister Elka are the main characters of this film - and from what the opening line states (the director dedicates the film to his older sister) its possible that the film is 'semi-autobiographical'.
Their relationship almost borders on mother and son as Elka says to Steffek, she is 'both Mom and Dad' to him, and that is what the movie mostly revolves around the antics of young Steffek and how Elka does her best to watch out for him, and balance that job with the one she has at a restaurant and another job that she is desperately trying to win in a big firm in that small town. Steffek, meanwhile is someone who totally believes in fortune and how one could get lucky in different ways, like, by throwing coins on the railway tracks and keeping his fingers crossed for hours as Elka waits in queue for her interview.
There are other quite important characters in this film too, like the man who Steffek believes is his father and Elka's boyfriend apart from some minor roles played by their mother, neighbor and a few others. All in all, it's a very simple film and Jakimowski keeps the storyline pretty straightforward. That is the secret to the beauty of this film its simplicity. It's also quite funny at times and it opens a window into Polish small-town life, and it kind of made want to visit this town - If I could find it, and if I were living not too far from there, I would - if it meant just spending a lazy weekend there, taking a stroll, a swim or just sipping some coffee and watching the trains go by.
Lastly, like I stated in the Summary (based on my humble opinion) - there was a hint of Kusturica - his brilliance and his kind of humour and like most Kusturica films, it was set in a Central/East European small-town, and was accompanied by catchy and well-composed music that fell into place with every scene. There was nothing to complain about - in direction, plot, acting nor the music.
Like Steffek, I keep my fingers crossed for Jakimowski (and other Polish directors) for a lot of success and acclaim that will pave the way for more projects of this genre / quality..