Mark Antony, Octavius, and Lepidus are in Mark Antony's House. Mark Antony tells Lepidus to run errands and important tasks. While Lepidus is out, Antony and Octavius talk down upon Lepidus. They compare him to a horse.
Brutus and Cassius are arguing about to do with the money they were given. This argument led them to argue about their trust and loyalty to each other. While this was going on, Brutus tells about his wife's death.
Caesar's ghost is haunting Brutus. The ghost tells Brutus, he will see him again at Philippi. The Ghost leaves. Brutus calls in his guards.