The opera Carmen, tells the story of a hopeless soldier, Don José, who is seduced by Carmen, a fiery gypsy woman with an appetite for smuggling. Sexy.
The Falstaff plot revolves around the thwarted, sometimes farcical, efforts of the fat knight Sir John Falstaff to seduce two married women to gain access to their husbands' wealth.
The Merry Widow. An opera comedy. A prince from a small kingdom courts a wealthy widow to keep her money in the country.
The opera, Rigoletto, is about a curse placed on both the Duke and Rigoletto by a courtier whose daughter the Duke has seduced with Rigoletto's encouragement. The curse comes to fruition when Gilda falls in love with the Duke and sacrifices her life to save him from the assassin hired by her father. Such drama.