The title pretty much tells the story, there are some killings in the wood and that's pretty much it. This so called massacre is presented by the antagonist whose blows are powerful enough to make a fountain of blood from any victim he meets. While hemorrhaging is no joke, it seems everyone has tendency to squirt liters of blood from the slightest touch. The excessively low budget gore is occasionally creepy, but mostly ironically ridiculous. Nevertheless, it has at least a little entertainment value.
A group of people go to a forest and meet with gruesome fate. Honestly, no one in the group is even remotely likable. Either they suddenly encounter the threat and proceed to usual frantic screaming, or the movie invests too much time on shallow characters. One particular female is so hostile, her entire dialogues consist of argument. This is very bizarre, especially when she still argues in the moments where her survival is at stake. At some points I thought she might just debate with the villain.
Other characters are overzealous, lacking logic or too meek. None of them feel as though they are genuinely facing authentic dangerous scenario with the villain gradually approaching. Scenes are poorly done, mainly because the editing is choppy. Almost the entire time the characters are shown standing randomly and awkwardly delivering the lines. Furthermore, it feels the screenplay misses a couple of scenes or lacking consistency, but audience probably wouldn't lose much anyway.
The effect is laughably over-the-top. Expect too much cheap blood spewed on the screen. It really doesn't matter what the cause is, these people will bleed. It only takes a simple jab and one of them starts to vomit blood until their hair and clothes are covered with it. This silly execution might just serendipitously work in in their favor as comedy effect.
The Redwood Massacre is unoriginal and shallow, even to the point of unintentionally funny, but the rigid slasher premise or silly antic might just deliver a few chuckles.