2 weeks after Cassius made the proposition to kill Caesar to Brutus. Cassius has been sending Brutus fake e-mail addresses in order to manipulate Brutus to side with him. Now, Brutus is thinking about killing Caesar, and whether it's right.
Portia, Brutus' wife enters, and is worried for Brutus.
Brutus something is wrong with you. You're not yourself. Tell me, what troubles you?
You are just woman, and you can't help me with this!