IMDB’s description:
Renfield, Dracula’s henchman and inmate at the lunatic asylum for decades, longs for a life away from the Count, his various demands, and all of the bloodshed that comes with them.
So, if you remember the movie Bram Stoker’s Dracula from 1992, you might recall that Keanu Reeve’s character took over the accounts of Dracula from R.M. Renfield, who went insane. This movie instead has Renfield (Nicholas Hoult) working for Dracula (Nicolas Cage) and becomes the familiar of Dracula ( a familiar being someone who apparently doesn’t age). Ninety years later Dracula and Renfield are hiding out in New Orleans while Dracula tries to recuperate from a near fatal encounter with vampire hunters.