"Ultraviolet" is a Polish crime drama series that premiered in 2017. The story follows Aleksandra "Ola" Serafin, portrayed by Marta Nieradkiewicz, a 30-year-old woman who returns to her hometown of Łódź. After witnessing a suspicious incident, she joins an online community of amateur detectives called "Ultraviolet," who collaborate to solve unsolved cases that the police have overlooked. The series blends traditional crime-solving with modern technology, offering a fresh take on the genre. Notable cast members include Agata Kulesza and Sebastian Fabijański.