[2] Lah was born in Pula, then part of Austria-Hungary, and emigrated to Buenos Aires around 1930 with her husband and fellow filmmaker Catrano Catrani.

[1] Around 1930, she moved to Rome and enrolled at the Centro Sperimentale di Cinematografia to study acting but later switching to film directing.

[1] In 1938, Lah married her colleague Catrano Catrani and they emigrated to Buenos Aires, where they pursued a career in the Argentine film industry,[1] which at that time was going through its "Golden Age".

[1] With the crisis of the studio system and the industrial model in the 1950s, both Lah and Catrani's careers followed the path of that of most Argentine filmmakers of the time, working independently with their own projects or by occasional contracts, such as commercials.

[1] Lah died already a forgotten figure at the Hospital Italiano de Buenos Aires in 1978, two years after her husband.