Satire to common police films at the time. The story, nimbly narrated, revolves around the figure of its popular interpreter, the radio comedian of those years Juan Carlos Mareco.
Gustavo and Ramón establish their own radio station, Radio Misterio, but life changes for Gustavo when he is offered a job at a prestigious radio station.
It shows through the life of a couple the different customs of Montevideo at the beginning and middle of the XX century.
