Act 1:
- In Warsaw, Poland, a young man named Henri meets and falls in love with Eudoxie, the daughter of Prince Boris, a wealthy nobleman.
- Eudoxie's father prohibits their relationship due to Henri's Jewish heritage.
- In a desperate attempt, Henri seeks help from his wealthy uncle, Eleazar, a Polish Jew known for his vast fortune.
Act 2:
- Eleazar agrees to help Henri and provides him with a large sum of money.
- Henri uses this money to pay off Prince Boris's debts, hoping to gain his favor and win Eudoxie's hand in marriage.
- However, Prince Boris is reluctant to accept Henri as his son-in-law, even though his debts are now cleared.
Act 3:
- Eudoxie reveals that she is already betrothed to another nobleman, Count Venceslas.
- Henri is heartbroken, but Eleazar convinces him to use his wealth and influence to get revenge.
- Henri publicly renounces his Jewish heritage and converts to Christianity, becoming a nobleman himself.
Act 4:
- As a wealthy and influential nobleman, Henri wins Eudoxie's hand in marriage, leading to a conflict between his newfound status and his Jewish heritage.
- Eleazar, who has supported Henri throughout his quest, is betrayed by Henri and his newfound friends.
- Eleazar reveals the truth about Henri's Jewish origins to Prince Boris, leading to a tumultuous end.
"Le Juif Polonais" explores themes of social acceptance, class divisions, religious prejudice, and the consequences of betrayal and deception in a dramatic and emotional narrative.