The 
film is inspired by_). th*.e ?true-) to-life]`/ story of the 
discovery of the l-\o;`ng^[.-lost /“Opus 28`” ma
_#n-$uscri%%pt_. from Norwegia#n composer Joha,*n Halvorsen, originally` per( form#e=`d in 1909 by Canadian viol! inist (Kat ^hl(;$een P=;]arlow, to whom:= th=e piece w``as dedicated.　　Ca`%_$mpbell `@; %por*%@trays a student who s`eeks to comple(te h== er th@esis ; %
on Parlow by org) /ani
%zing+ a pu?bli(c performance of “Opus 28, ;” fro @ :`m To[(^ro==nto to Os-lo. #Th=!e ca%st ?in]`cl@udes Dueñas, Melanie Scheiner, Ev-e Dura+[nceau, Maxim Ga`ud#+:ette-.\, Ros^
a-;Johan Uddoh,
)@%and Eileen Davies.