Two musicians of different ages, styles, origins, and musical genres, without being aware of one another, meet "in the dark." They must perform in an unknown venue after only 10 minutes of rehearsals in front of an audience made up of their respective fan clubs.

The audience becomes witness to an uncensored and absolutely unpredictable jam session in which all the pieces are performed in a duet.

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The risk of making mistakes is very high and, on stage, the surprises never end.