At the University of Night Snack, life followed one universal law: nothing brings people together more than hunger at two in the morning. Especially when, in the philosophy department, the lecturer was asking an essay on the meaning of life, and in mathematics no one could count how many slabs of bread were left in the kitchen. It was into the latter, somewhat messy kitchen, that Maciek - a computer science student known in the dormitory as the "Sandwich Ninja" - crept. Dressed in superhero pyjamas and toast-shaped flip-flops, he strode through the corridors as if he were going on a mission to save the world. In his left hand he clutched a jar of peanut butter, in his right a knife that still remembered the communist era. Behind the kitchen door, suspicious sounds could be heard: the clink of plates, laughter and.... Was it a snippet of a disco polo song? He opened the door with an urge and behold, the Night Sandwich Club appeared to his eyes in all its glory: Ada, the master of ham towers, Igor, the sauce magician and Dominika, the self-proclaimed queen of challah. Each had their own way of surviving the darkness. The table was strewn with late-night snacks and the atmosphere was hotter than the air conditioning in June. - Maciek! - called out Ada. - Join in, we're about to create the all-time sandwich! Dominika was already juggling tinned cucumbers, Igor was trying to calculate the algorithm for the perfect amount of ketchup, and Ada was pulling a mysterious jar labelled "Taste Bomb" out of her backpack. Everyone had forgotten that the exam was about to take place, that the fridge was barely breathing and that someone had last seen Professor Zdzisław in a dressing gown and with a colander on his head at night. Suddenly, the light in the kitchen started flashing. Everyone froze. The door creaked open and a quiet voice came from the corridor: - Is this where ... making sandwiches? A figure appeared in the threshold, wearing a giant felt hat whose brim covered his face....