Loads of gore, decent effects and unintentionally funny characters made this film just makes it bearable. I had to watch this in 3 different sittings and maybe that's the best way to see it without becoming tired of the story.
There are events that set off a chain reaction and sets a series of events into motion.
House of Blood (called Chain Reaction on the IMDb) is really a pretty terrible movie in many respects. Christopher Kriesa is not that bad an actor, but the rest of the cast is pretty bad (except for what is basically a cameo from Jurgen Prochnow). I think the movie was shot in Germany. The gore effects are pretty bloody for the most part and some are pretty good.
Others are not, especially the make-up work. We're left in the end with a lot of important unanswered questions. The whole "chain reaction" aspect and other parts of the writing are pretty poor.
House of Blood is pretty poor and I'd only suggest a rental if you want something to make fun of or are that desperate for gore effects (lots of the red stuff flows). Thou renteth at thine own peril!