Tosca - Giacomo Puccini

Act 1
On 17th June, 1800, Rome is ruled by fear, that is, republicanism collapses, and shifts to royalism. Scarpia, general of the secret police, on the side of royalism continuously commits many republicans to prison. One of the republicans, Angelotti, succeeds in breaking out of prison, and rushes into the church of Sant' Andrea della Valle. In the church, he meets up with another republican, Cavaradossi. Cavaradossi harbors Angelotti in his secret hideout.
After the two left the church, Scarpia who gives chase to Angelotti enters the church. Scarpia can’t find Angelotti, but meets Tosca there. She is the singer, and Cavaradossi’s lover. Scarpia tricks Tosca into going to Cavaradossi’s house, and has his subordinates follow her.

Act 2
In the Farnese Palace, Scarpia receives word that his subordinates can’t find Angelotti, but have arrested Cavaradossi. Scarpia tortures Cavaradossi, but Cavaradossi doesn’t confess Angelotti’s whereabouts. Scarpia calls Tosca, and shows her her lover’s tortured state. Tosca gives up the route to the secret hideout to Scarpia.
Then, word comes that Napoleon has won the Battle of Marengo, that is, a defeat for royalism. Cavaradossi exclaims with delight. Scarpia is furious with him, and condemns Cavaradossi to death.
Tosca begs Scarpia to save her lover's life. Scarpia demands that Tosca yield herself to him in exchange for her lover's life. As Scarpia goes to touch Tosca, she stabs him to death with a knife from the table.

Act 3
Tosca runs to Cavaradossi who is confined to the prison at the castle of Sant'Angelo. But, the firing squad carry out their orders to shoot Cavaradossi. When Scarpia’s subordinates rush to arrest Tosca for Scarpia's murder, she kills herself by leaping from the castle.