Love It Was Not (2022) on Netflix

The tragic love story of Helena Citron, a young Jewish prisoner in Auschwitz, and Austrian SS officer Franz Wunsch.

A tragic love story between a prisoner and her captor. Flamboyant and full of life, Helena Citron is taken to Auschwitz as a young woman, and soon finds unlikely solace under the tutelage of Franz Wunsch, a high-ranking SS officer who falls in love with her and her magnetic singing voice. Risking a certain execution if caught, their forbidden relationship went on until her miraculous liberation. But when a letter arrives from Wunsch's wife, thirty years later, begging Helena to testify on Wunsch's behalf, she's faced with an impossible decision: will she help the man who brutalised so many lives, but saved hers, along with some of the people closest to her?

—Docaviv

A young Jewish woman named Helena Citron is taken to Auschwitz, where she develops an unlikely romantic relationship with Franz Wunsch, a high-ranking SS officer. Thirty years later, a letter arrives from Wunsch's wife asking Helena to testify on Wunsch's behalf. Faced with an impossible decision, Helena must choose. Will she help the man who brutalized so many lives, but saved hers?

—Greenwich Entertainment