Brutus joins the plot against Caesar.
Characters: 
Brutus

Brutus has been sleeping poorly thinking about Caesar's growing power. He meets with the conspirators and clashes with his wife Portia.

Lucius

Brutus' servant who brings him candles and announces the people who come to the door.

Cassius

As the head of the conspirators, Cassius introduces the others to Brutus and convinces him to join them. He advocates killing Mark Antony as well.

Decius

A senator and conspirator who reassures the company that he will convince Caesar to come to the capitol the next day no matter what.

Casca

Senator and conspirator.

Cinna

Senator and conspirator.

Metellus Cimber

Senator and conspirator who plans to ask Caesar to restore his banished brother's citizenship.

Trebonius

Senator and conspirator.

Portia

Brutus' wife, she is angry and feels disrespected because Brutus will not share with her what is troubling him.

Ligarius

A sick Roman, he revives when Brutus tells him of the plot against Caesar and decides to join the others.

Scene Summary: 

Brutus lies awake at night, pondering the future of Rome. He tries to justify killing Caesar, saying that although Caesar seems honorable now, he may become corrupted by power. Brutus reads a letter that accuses him of not taking action to prevent corruption in Rome.

Cassius and the conspirators visit, and Brutus agrees to kill Caesar. When Decius Brutus asks if they should kill anyone else besides Caesar, Cassius suggests Mark Antony, but Brutus thinks that’s a bad idea for both moral and practical reasons. The others follow his lead. Decius Brutus volunteers to make sure Caesar makes it to the Capitol the next day, and then conspirators all leave.

Brutus’ wife Portia comes in and demands to know what Brutus has been keeping from her. Brutus praises her but says he can’t tell her just yet, so she departs. The sick Caius Ligarius enters, and when Brutus tells him of the plot against Caesar, he immediately agrees to join and resolves to be well again.