Bud Abbott and Lou Costello Meet the Invisible Man 4K 1951

Lou Francis and Bud Alexander are aspiring private investigators fresh out of specialty school. Boxer Tommy Nelson becomes their first client. He has escaped from prison, where he was imprisoned on false charges of murdering his manager. Nelson asks his buddies to escort him to his fiancée, Helen. The thing is that her uncle, Dr. Philip Gray, has invented an "invisibility serum", which the boxer wants to inject himself to use the invisibility to find the real killer and prove his innocence.