La Fanciulla del West is a sweeping romance set during the California Gold Rush. Minnie, who runs a saloon for a camp of rambunctious miners. Dick Johnson, the mysterious outlaw who wins Minnie's heart despite his unsavory past.
Onegin's friend Lensky introduces him to Tanya, his fiancee's sister but Onegin flirts with his fiancee. Lensky challenges him to a duel; nobody stops them. Later, Onegin tries to seduce Tanya, but she's married. Onegin just doesn't get it.
Two men enter a bet with intriguer Alfonso that their women will stay true, but disguise themselves, switch partners, and regretfully seduce their targets.