Since IMDB has denied me, and in case my correction doesnt go through a second time, here is the real summary for this trailer, which everyone should know by now, so no need for spoiler alerts:
Under a full moon, a beautiful woman sings a haunting song of olde. Geralt of Rivea, The Witcher, approaches her carefully, having taken up a bounty to hunt her. For she is a Bruxa, a rare vampire, that must be killed at all cost.
Really good, looked good, sounded good, felt legit. Enjoy and check out the netflix show too. ITs pretty good.