Coïncidences Banda sonora (1947) BSO

A rich girl is in love with her father-in-law 's librarian .The wealthy man wants her to marry a military man but she's not prepared to accept it.She rebels and marries the poor guy. This young man has a cousin , who seems secretly in love with him but in fact we 'll never know what she feels.This mysterious sad woman,always dressed in black,gives her relative a strange box which seems to be a bad luck charm.The hand of fate seems on the newlyweds now:the husband involuntarily causes a car crash :his wife is killed.