[3] The series aims to follow on from popular 1980s co-production projects of Czechoslovakia and West Germany Návštěvníci, Létající Čestmír or Arabela.

[6] Plot itself is inspired by real life Czechoslovak institute that focused on paranormal activity which existed in 1980s.

"[8][9] Director Matěj Chlupáček mentioned during interview in August 2023 that he would like to make a second season if the series is successful.

[10] The series follows members of the Institute of Paranormal Phenomena who solve various mysteries in 1980s communist Czechoslovakia.

Skeptic investigator David and a naive scientist Vojta are solving cases that include an alien abduction, self-immolation of a saint in a church, or an attack by the creepy monster Kozlopír.