This is an excellent modern-day film noir...."excellent" in that it's interesting, start-to-finish. There are some holes in here and some goofy parts that make you shake your head in disbelief.....but I haven't found anyone who didn't get caught up in this story. The movie has the right amount of action, suspense, plot twists and interesting characters. In addition, it sports some nice colors and cinematography plus a good guitar-based soundtrack.
I labeled this crime movie a "film noir" because it's gritty and the all the characters are no good. Even the only supposed-good guy, played by Nicholas Cage, gets himself in trouble by lying and has a quick affair he should't have. He also does something at the end which isn't right, but I'm not going the spoil it by saying. Suffice to say, however, that the rest of the characters are so bad they make Cage look good!
Speaking of "bad guys," does anyone do it better than Dennis Hopper? Not many. At least in the "deranged" category, he's tough to beat. Lara Flynn Boyle is fun to watch for a bunch of reasons. J.T. Walsh gives another great supporting performance, too.
This is one of those films that never got much publicity, but it should have. You'll have fun watching this. By the way, try saying the name of this movie out loud three times fast without messing it up!

...though for a film that seems to be trying to market itself as a horror, there was a distinct lack of blood.
There was also a distinct lack of skilled directing, acting, editing, and script-writing.
Jeremy London put in one of most appalling performances I've ever seen - his "descent into the maelström" of madness is achingly self-aware and clumsy. Oh look at him twitch! Oh look at him drink strong spirits! Oh look at him raise his brow, and cock his head at a jaunty angle! Oh look at his unwashed, greasy dark hair! Oh listen to his affectedly husky voice! He must be a tortured artist/writer/genius! Oh, yes, out comes the poet-shirt - it's another boy who thinks he's Byron. (Or Poe.) Oh for the love of... did someone give this guy a manual on "How To Act Good" or did they just pull him out of a cardboard box somewhere, the defunct little plastic toy-prize in a discontinued brand of bargain-bin cereal. Okay, that was a stupid line - but that's only because London's performance has melted my brain with its awfulness.
Katherine Heigl is cute, and very briar rose, but has yet to grow into her acting shoes in this film - she delivered her lines like she was being held up, in fact, her whole performance was very wooden, her poses as stiff as her lines - who knows, perhaps she was just reacting to, and trying to neutralise, Jeremy London's flailing excesses, but if that's the case, she takes it too far.
Notable is Arie Verveen as Poe - while his character's role is confused, he delivers the best performance of the piece. He, quite simply, looks right, but it's more than that - he has some sort of depth, I believed that he had a life beyond the dismal two-dimensional quality of the rest of the characters. Huh, maybe it's just because I like Poe, and could thus just let my mind wander and invent while he was on screen - whatever, he had an interest factor otherwise missing.
The rest of the characters are a faceless blur - there are all the usual caricatures: the perky blonde best-friend who's a bit of a floozy; the smitten local cop who's a bit of a dork; the protective older man who perhaps has too much un-fatherly interest in our heroine; the scheming old witch, etc., etc., yawn, yawn.
As with the 'distinct lack of blood for a horror movie' issue, none of the themes that they mention (and that London's character mentions - so scathingly - in his attack on Poe's writing) are followed through on. As another reviewer said - there was potential here: murder, incest, - genuinely shocking stuff, but instead they skirt away from the issues, and cut away from the violence (a raised candlestick swinging through the air - closing in on it's victim - then---cut to black! This is fine in a Noirish traditional horror, indeed, it's expected, and is fondly received when it happens - it's a dear convention, especially when accompanied by fake lightning bolts and intense Siouxie eye makeup - but in 'Descendant' it just comes across as clumsy, or as though the editor got queasy at the last minute and cut it out.) This could have either been a very tense psychological thriller - the horror of palingenesis/delusion/madness - or a simple (and fun) slasher movie: it tries to be both, or neither (something new and exciting!), but either way it fails dismally. The only horror element of this entire movie is it's epic dullness.
I think the editor (if there was one at all) must have been drunk when s/he chopped this thing up - there are awkwardly foreshortened scenes; scenes that appeared to be out of order (but that could have just been the poor script). LIkewise the director & cinematographer - there were some very strange shots and framing that I think were meant to be tributes to Hitchcock or Browning, but just ended up looking silly (again, fine in a noir, but this was trying to be something else.)
The whole thing perhaps may have been funny (in that way that previous reviewers have mentioned - "OMG how did this get made?!?") if I had been in the mood for some trash- bagging, unfortunately for me I had settled on the couch, with the lights down low, with the express intention of scaring myself silly - this is a very poor film, and I'm afraid I can't recommend it to people, not even for laughs.
Please, please, don't waste your time or money on this - either borrow a real horror/thriller film, or find yourself a copy of Poe's fantastical tales, either way, you'll have a far more enjoyable and frightening night than you could ever hope to achieve with this rubbish.