Anick, introverted and bullied, becomes an unlikely hero when an AI in shape of a fierce Medieval girl reaches out through time, seeking help to defeat the Rat King, a creature who wants to build a shadow realm of hate and lies. Rat King is a 3D animated adventurous feature film, for a target audience 10 years old up to all ages. While it tells the exciting and funny present-day story of Anick, a 13-year-old girl, it refers to German fairy tales as well as to Japanese anime and pop culture combined with queries about how social media and AI changes the way we define ourselves.