Ricardo Mendi's gypsy orchestra lands a contract in the El Dorado cabaret, in San Juano in Central America. Mila, Mendi's girlfriend, is having an affair with José, the singer. But weariness eventually gets the better of her and the beauty lets herself be seduced by Mendoza, the cabaret director. José, disappointed, does not take long to console himself in the arms of Luisa Heim, the charming owner of the place. The troop soon discovers that their hosts are involved in drug trafficking, in which they participate despite themselves. An unenviable fate, prison or death, awaits them...
A vehicle for bel canto singer Luis Mariano masquerading as a thriller of sorts ;it's actually 50% musical acts ,and 50% film noir ; Mariano is not only a singer but he also plays the violin. The movie begins with Liszt 's Hungarian Rapsody which outstays its welcome in what is finally a smugglers affair (like "Carmen" of which Bizet wrote an opera ).
You will easily guess who the baddies are :they are VIP ,and their method is quite shrewd: to indicate where the clandestine cargo will be delivered , they use music tunes (hence the connection with the concerts) on the national airwaves ,much to the prefect's displeasure ( Pierre Renoir) who cannot catch these sharks red handed.
