For those unfamiliar, Fidelio tells a bit of a convoluted tale. Early on we are introduced to Marzelline, who is daughter of the local gaoler Rocco.
She has fallen for her father’s handsome young assistant Fidelio. Unbeknown to either father or daughter is that Fidelio is actually a woman, Leonore, in disguise.
Leonore has taken the job of gaoler’s assistant as she believes her husband is being held captive there. Cue her attempts to visit and hopefully free the political prisoner, with the.