Ultraviolet plot
Ola Serafin, in his thirties, is forced by circumstances to leave her husband in London and return to her hometown of Lódz in Poland. During a nighttime car ride, she witnesses a suicide-like situation that she finds very suspicious. However, the police are not interested in investigating the matter further, so Ola decides to do this herself. She finds a group of amateur detectives on the internet who are trying to solve cases that the police no longer want to do.