Drama about the unhappily married Alexandra who hopes to recover from tuberculosis in a mountain resort, but instead meets the multimillionaire Edgar Buchanan.

When his colleague presents him with (forged) evidence of his wife Sylvette's unfaithfulness, factory owner Jean Sourdier kills him in a fit of rage. After fifteen years in prison he is determined to take revenge on his wife by killing Ninette, a daughter from her second marriage.