Aurora Borealis is a family story with several twists taking place on two separate timelines. It analyses the relationship between a mother and a daughter in great depth. Mária (Mari Törőcsik), the elderly mother of Olga (Ildikó Tóth), the successful attorney living in Vienna, unexpectedly falls into a coma. While Mária is hovering between life and death, Olga comes across a deliberately withheld secret. The increasingly passionate investigation takes her back to war-torn Europe of the 1950s; where, at the end of her journey she discovers herself: a woman she never knew before. The film addresses the dramatic situations originating from identity crises, the deep wounds of war and the far-reaching impact of the secrets we keep.