Karol, an ordinary young man, meets a much older man, whom he believes could be the famous Red Spider, a dreaded serial killer who terrified the people of Krakow in the 1960s. Karol becomes obsessed with the man and starts watching him. In the meantime, he also meets Danka – a slightly older photographer who works for a local newspaper. Tempted by love and fascinated by death, Charles will soon have to make the most fundamental decision of his life.