I quite enjoyed "The Hamiltons" of which "The Thompsons" is a kind of follow up, as they have fled away from th States to Europe, where they're up to no good.
They describe the difficult life of modern day vampires. With nowadays surveillance cameras it's not easy to get a drink of blood. After Running away from the US they go looking for their ancestors in Europe, from where Hamiltons origin, the Mandersons. And you could say that they find them. But the foreign visitors aren't politely received.
If you didn't know; you shouldn't be ashamed of being a vampire. In this film we get to know vampire life as the most common thing there is, being a vampire and a killer. And it's a disgrace to not be a real vampire.
It's a modern vampire story well told. The production values is once again very good. The Butcher Brothers knows how to tell their vampire stories, so that we almost start to believe them. It's gory, funny, disgusting and bloody, as a vampire slasher has too be. When the Butcher Brothers decide to do something really serious, they'll know how to do it.
However this story is told so disjointed and without any car, then it falls short from the original one. Too many stupid coincidences and plot holes makes this far off what it should have been. Sloppy, you could say. And that becomes boring and annoying.
You won't miss out if you stop watching this half ways, as the quality falls from there.
The only thing you miss out, is that they sympathetically drive off in an Audi S-line. A pity it'll have to be blood spattered...