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Pelle Parafins Bøljeband og Serum Serum
1979 · 1 season · 6 ep · 9.0 on TMDB
Girls mix a serum in the chemistry lab. The serum was supposed to give them fuller voices so that they could sing in Pelle Parafin's Bøljeband, but instead they stumble upon and invent a truth serum that forces everyone who inhales it to tell the truth.
