No pun intended - I don't think the title and the movie itself leaves too much to the imagination. Not sure if you know what this is about, but even if you haven't read the summary about what is going to go down (and can't imagine what the river or rather why it is filled (?) with blood) ... well the first minutes will clue you in to say the least.
The horror movie trope where we get the very first shocks ... and which sets the tone for the rest of the movie. What happens next ... well we get new characters ... and we are supposed to get to know them and care for them. I am not sure that will happen for everyone ... just saying and giving you a heads up. A low budget horror movie .. like it or not (no pun intended)
