Young Polish physics student Marie marries Doctor Pierre Curie, in whose
lab she had worked for a while. On their honeymoon they decide to find out
what caused the strange effect Prof. Becquerel has noticed with the
uranium/thorium stones for her dissertation. After many experiments they
find
out that there must be more radioactive elements than uranium and thorium,
and they try to isolate it. After years of experiments in a makeshift lab at the
University, they are able to isolate a few grains of a new element, radium,
from 7 tons of raw material, but at the height of their success, Pierre is killed
in an traffic accident.