A marimba player in a black metal band: it’s an unlikely combination that turns out to work well. The band Marimbas from Hell has given the generally cheerful yet old-fashioned instrument from Guatemala a completely new image. The resounding marimba combines startlingly well with satanic texts such as 'A den of demons, mutilated beings, disgusting beings'. The reason why marimba player Alfonso joined the band is another story. After he was blackmailed, he had to sell his house and leave his family. He spends the nights on a hard armchair and now hopes to earn some money with the band. Director Julio Hernández Cordón met Alfonso in 2007, when he made his debut film Gasolina, but the sequence with him remained on the cutting-room floor. Later he looked him up again for this docu-fiction, using the motto: ‘This is a tribute to the people I know who develop projects that are unthinkable in a country such as mine.’