Marcus Brutus is Caesar's close friend and a Roman praetor. Brutus allows himself to be cajoled into joining a group of conspiring senators because of a growing suspicion - implanted by Caius Cassius - that Caesar intends to turn republican Rome into a monarchy under his own rule. The early scenes deal mainly with Brutus's arguments with Cassius and his struggle with his own conscience. The growing tide of public support soon turns Brutus against Caesar (this public support was actually faked; Cassius wrote letters to Brutus in different handwritings over the next month in order to get Brutus to join the conspiracy). A soothsayer warns Caesar to "beware the Ides of March," which he ignores, culminating in his assassination at the Capitol by the conspirators that day, despite being warned by the soothsayer and Artemidrous, one of Caesar's supporters at the entrance of the Capitol.