 The idea of the dolls made from victims' flesh came from Fialkov's research about voodoo, as well as his own interest in cults and secret societies.Fialkov also said "Echoes" was partially inspired by the 1960 horror film "Psycho", directed by Alfred Hitchcock, because he felt both stories were driven by the characters and drama rather than the horror.Fialkov described the series as "achingly dark", and said of writing it