The Red Spider (Polish: Czerwony pająk) is a 2015 Polish thriller film directed by Marcin Koszałka.
"The Red Spider" for the film, which was inspired by the story of Karol Kot, a serial killer operating in Kraków in the 1960s, also known as the "Vampire from Kraków." Karol from Red Spider is a teenager like everyone else – young, well-built, on the verge of life. He comes from a good home, there are no problems at school, success, successes in sports, he falls in love. Everything is about being good, but it's not. The turning point in his life is when he accidentally witnesses a murder. Driven by curiosity, start following the killer. In this way, he discovers the dark side of his nature that existence was unaware.