The film is a remake of the classic prison break movie of the same name starring Steve McQueen and Dustin Hoffman in 1973, telling the story of Charlie Han. Nam's professional pickpocket Henry was framed for killing a pimp and was exiled to a prison in French Guiana, surrounded by the sea, because he had a butterfly tattoo on his chest. From the day he stepped into the prison, Papillon planned to escape from the prison, but to escape from the prison, he needed to bribe the guards with money and buy escape ships at the same time, so he set his sights on the forgery expert and millionaire who was serving his sentence at the same time. Louis, played by Rami Malek, obtains financial support from Degas by ensuring his safety, and the two form an alliance..