This is more a review based on the quality of the Blu-ray than an overview of the film. If you're a fan of slasher films or giallo horror, then this is well known as a masterpiece. It is a giallo classic, and it is a precursor to the slasher film. It's also one colorful, strangely motivated trip of a film. It is also available in the 2nd Bava boxed-set, in DVD format, and as a single disc release. As a horror film, the work is genius. Bava was a master, and this is one gory murder expose. The kill scenes were instant classics in their time, and the film has aged as well as Bava's earlier works like the beautifully gothic Black Sunday, or the giallo masterpiece, Blood and Black Lace. Yet, it remains incomparable to them in certain ways, and is more comparable to those he influenced including Argento and Fulci, and it's clear that his camerawork in this film helped take the stalker viewpoint into the slasher perspective, something that influenced his future counterparts in America during the late 70s and 80s slasher advance.
A summary of the film... people trespass at the wrong place at the wrong time, and the title holds true to the film, as there is a vicious and multi-seeded land dispute going on as the backstory. Bava elevated the disturbance of the audience through dedicated violence and dread-based suspense, rather than the atmospheric suspense he relied upon in his films from the 60s. This film was a turning point for Bava, in ways, this work really let him stretch out.
The quality of the DVD was good, a lot better than the VHS recording I grew up with. However, when the Blu-ray came out, I knew it was one of the few films from the 70s that I was interested in purchasing. I feel that it is only natural for a lot of people to be particular about which Blu-rays they wish to purchase, because, for many, they're upgrading from a film they might already own. Also, some films don't transfer as well as audiences would hope, or the proper prints are not used. This is not the case here. The Blu-ray quality is superb. The video is 1080P, and the bitrate is more than double the previous DVD release. The colors are crisp, the sound is truly great- especially in the English release, even the dubs aren't poor. The price is a little steep, but I found it on here from an independent seller and spent less than $20. Well worth my money, also, anyone who is a Mario Bava fan probably skipped this review and already added to cart. The Blu-ray comes with a great booklet with a superb 7 page overview of Bava, giallo, Bay of Blood etc... Also, it has an awesome, double-sided poster of both theatrical release posters (as pictured) and alternative red/black poster.
NOTE: The English language version of the film is the version that they used for the high definition. The original Italian version is included in the same print (I believe) as the previous DVD release, which is fine. Great film. Great artist- Bava has screenwriting and cinematography credits for Bay of Blood. Let the blood bath begin.