That chap up there is Caius Naughtymurders, leader of The Elder Scrolls Online‘s Dark Brotherhood guild, and it’s definitely his name because look at him. He wants your sneaky Khajit/magical Argonian/fighty human to do some murders for him, murders that will involve sneaking up on people and introducing daggers to their formerly rupture-free throats. (There will hopefully be other, more devious ways to assassinate people, as in the previous Elder Scrolls games, but the trailer doesn’t show any such ways).
Speaking of which, here’s a new trailer offering a ‘first look’ at TESO’s upcoming Dark Brotherhood DLC.